21837120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 168

約数和(自身を含む): 74163936

約数和(自身を除く): 52326816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 43, 46, 48, 60, 64, 69, 80, 86, 92, 96, 115, 120, 129, 138, 160, 172, 184, 192, 215, 230, 240, 258, 276, 320, 344, 345, 368, 430, 460, 480, 516, 529, 552, 645, 688, 690, 736, 860, 920, 960, 989, 1032, 1058, 1104, 1290, 1376, 1380, 1472, 1587, 1720, 1840, 1978, 2064, 2116, 2208, 2580, 2645, 2752, 2760, 2967, 3174, 3440, 3680, 3956, 4128, 4232, 4416, 4945, 5160, 5290, 5520, 5934, 6348, 6880, 7360, 7912, 7935, 8256, 8464, 9890, 10320, 10580, 11040, 11868, 12696, 13760, 14835, 15824, 15870, 16928, 19780, 20640, 21160, 22080, 22747, 23736, 25392, 29670, 31648, 31740, 33856, 39560, 41280, 42320, 45494, 47472, 50784, 59340, 63296, 63480, 68241, 79120, 84640, 90988, 94944, 101568, 113735, 118680, 126960, 136482, 158240, 169280, 181976, 189888, 227470, 237360, 253920, 272964, 316480, 341205, 363952, 454940, 474720, 507840, 545928, 682410, 727904, 909880, 949440, 1091856, 1364820, 1455808, 1819760, 2183712, 2729640, 3639520, 4367424, 5459280, 7279040, 10918560, 21837120]

約数ペア:

[(1, 21837120), (2, 10918560), (3, 7279040), (4, 5459280), (5, 4367424), (6, 3639520), (8, 2729640), (10, 2183712), (12, 1819760), (15, 1455808), (16, 1364820), (20, 1091856), (23, 949440), (24, 909880), (30, 727904), (32, 682410), (40, 545928), (43, 507840), (46, 474720), (48, 454940), (60, 363952), (64, 341205), (69, 316480), (80, 272964), (86, 253920), (92, 237360), (96, 227470), (115, 189888), (120, 181976), (129, 169280), (138, 158240), (160, 136482), (172, 126960), (184, 118680), (192, 113735), (215, 101568), (230, 94944), (240, 90988), (258, 84640), (276, 79120), (320, 68241), (344, 63480), (345, 63296), (368, 59340), (430, 50784), (460, 47472), (480, 45494), (516, 42320), (529, 41280), (552, 39560), (645, 33856), (688, 31740), (690, 31648), (736, 29670), (860, 25392), (920, 23736), (960, 22747), (989, 22080), (1032, 21160), (1058, 20640), (1104, 19780), (1290, 16928), (1376, 15870), (1380, 15824), (1472, 14835), (1587, 13760), (1720, 12696), (1840, 11868), (1978, 11040), (2064, 10580), (2116, 10320), (2208, 9890), (2580, 8464), (2645, 8256), (2752, 7935), (2760, 7912), (2967, 7360), (3174, 6880), (3440, 6348), (3680, 5934), (3956, 5520), (4128, 5290), (4232, 5160), (4416, 4945)]