21558720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1358

約数の個数: 112

約数和(自身を含む): 72530208

約数和(自身を除く): 50971488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1321, 1360, 1632, 2040, 2642, 2720, 3264, 3963, 4080, 5284, 5440, 6605, 7926, 8160, 10568, 13210, 15852, 16320, 19815, 21136, 22457, 26420, 31704, 39630, 42272, 44914, 52840, 63408, 67371, 79260, 84544, 89828, 105680, 112285, 126816, 134742, 158520, 179656, 211360, 224570, 253632, 269484, 317040, 336855, 359312, 422720, 449140, 538968, 634080, 673710, 718624, 898280, 1077936, 1268160, 1347420, 1437248, 1796560, 2155872, 2694840, 3593120, 4311744, 5389680, 7186240, 10779360, 21558720]

約数ペア:

[(1, 21558720), (2, 10779360), (3, 7186240), (4, 5389680), (5, 4311744), (6, 3593120), (8, 2694840), (10, 2155872), (12, 1796560), (15, 1437248), (16, 1347420), (17, 1268160), (20, 1077936), (24, 898280), (30, 718624), (32, 673710), (34, 634080), (40, 538968), (48, 449140), (51, 422720), (60, 359312), (64, 336855), (68, 317040), (80, 269484), (85, 253632), (96, 224570), (102, 211360), (120, 179656), (136, 158520), (160, 134742), (170, 126816), (192, 112285), (204, 105680), (240, 89828), (255, 84544), (272, 79260), (320, 67371), (340, 63408), (408, 52840), (480, 44914), (510, 42272), (544, 39630), (680, 31704), (816, 26420), (960, 22457), (1020, 21136), (1088, 19815), (1321, 16320), (1360, 15852), (1632, 13210), (2040, 10568), (2642, 8160), (2720, 7926), (3264, 6605), (3963, 5440), (4080, 5284)]