21357510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 53581824

約数和(自身を除く): 32224314

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 71, 74, 111, 142, 185, 213, 222, 271, 355, 370, 426, 542, 555, 710, 813, 1065, 1110, 1355, 1626, 2130, 2627, 2710, 4065, 5254, 7881, 8130, 10027, 13135, 15762, 19241, 20054, 26270, 30081, 38482, 39405, 50135, 57723, 60162, 78810, 96205, 100270, 115446, 150405, 192410, 288615, 300810, 577230, 711917, 1423834, 2135751, 3559585, 4271502, 7119170, 10678755, 21357510]

約数ペア:

[(1, 21357510), (2, 10678755), (3, 7119170), (5, 4271502), (6, 3559585), (10, 2135751), (15, 1423834), (30, 711917), (37, 577230), (71, 300810), (74, 288615), (111, 192410), (142, 150405), (185, 115446), (213, 100270), (222, 96205), (271, 78810), (355, 60162), (370, 57723), (426, 50135), (542, 39405), (555, 38482), (710, 30081), (813, 26270), (1065, 20054), (1110, 19241), (1355, 15762), (1626, 13135), (2130, 10027), (2627, 8130), (2710, 7881), (4065, 5254)]