21428160

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 224

約数和(自身を含む): 78345792

約数和(自身を除く): 56917632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 101, 102, 104, 120, 130, 136, 156, 160, 170, 192, 195, 202, 204, 208, 221, 240, 255, 260, 272, 303, 312, 320, 340, 390, 404, 408, 416, 442, 480, 505, 510, 520, 544, 606, 624, 663, 680, 780, 808, 816, 832, 884, 960, 1010, 1020, 1040, 1088, 1105, 1212, 1248, 1313, 1326, 1360, 1515, 1560, 1616, 1632, 1717, 1768, 2020, 2040, 2080, 2210, 2424, 2496, 2626, 2652, 2720, 3030, 3120, 3232, 3264, 3315, 3434, 3536, 3939, 4040, 4080, 4160, 4420, 4848, 5151, 5252, 5304, 5440, 6060, 6240, 6464, 6565, 6630, 6868, 7072, 7878, 8080, 8160, 8585, 8840, 9696, 10302, 10504, 10608, 12120, 12480, 13130, 13260, 13736, 14144, 15756, 16160, 16320, 17170, 17680, 19392, 19695, 20604, 21008, 21216, 22321, 24240, 25755, 26260, 26520, 27472, 31512, 32320, 34340, 35360, 39390, 41208, 42016, 42432, 44642, 48480, 51510, 52520, 53040, 54944, 63024, 66963, 68680, 70720, 78780, 82416, 84032, 89284, 96960, 103020, 105040, 106080, 109888, 111605, 126048, 133926, 137360, 157560, 164832, 178568, 206040, 210080, 212160, 223210, 252096, 267852, 274720, 315120, 329664, 334815, 357136, 412080, 420160, 446420, 535704, 549440, 630240, 669630, 714272, 824160, 892840, 1071408, 1260480, 1339260, 1428544, 1648320, 1785680, 2142816, 2678520, 3571360, 4285632, 5357040, 7142720, 10714080, 21428160]

約数ペア:

[(1, 21428160), (2, 10714080), (3, 7142720), (4, 5357040), (5, 4285632), (6, 3571360), (8, 2678520), (10, 2142816), (12, 1785680), (13, 1648320), (15, 1428544), (16, 1339260), (17, 1260480), (20, 1071408), (24, 892840), (26, 824160), (30, 714272), (32, 669630), (34, 630240), (39, 549440), (40, 535704), (48, 446420), (51, 420160), (52, 412080), (60, 357136), (64, 334815), (65, 329664), (68, 315120), (78, 274720), (80, 267852), (85, 252096), (96, 223210), (101, 212160), (102, 210080), (104, 206040), (120, 178568), (130, 164832), (136, 157560), (156, 137360), (160, 133926), (170, 126048), (192, 111605), (195, 109888), (202, 106080), (204, 105040), (208, 103020), (221, 96960), (240, 89284), (255, 84032), (260, 82416), (272, 78780), (303, 70720), (312, 68680), (320, 66963), (340, 63024), (390, 54944), (404, 53040), (408, 52520), (416, 51510), (442, 48480), (480, 44642), (505, 42432), (510, 42016), (520, 41208), (544, 39390), (606, 35360), (624, 34340), (663, 32320), (680, 31512), (780, 27472), (808, 26520), (816, 26260), (832, 25755), (884, 24240), (960, 22321), (1010, 21216), (1020, 21008), (1040, 20604), (1088, 19695), (1105, 19392), (1212, 17680), (1248, 17170), (1313, 16320), (1326, 16160), (1360, 15756), (1515, 14144), (1560, 13736), (1616, 13260), (1632, 13130), (1717, 12480), (1768, 12120), (2020, 10608), (2040, 10504), (2080, 10302), (2210, 9696), (2424, 8840), (2496, 8585), (2626, 8160), (2652, 8080), (2720, 7878), (3030, 7072), (3120, 6868), (3232, 6630), (3264, 6565), (3315, 6464), (3434, 6240), (3536, 6060), (3939, 5440), (4040, 5304), (4080, 5252), (4160, 5151), (4420, 4848)]