21513432

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 57870720

約数和(自身を除く): 36357288

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 67, 68, 102, 134, 136, 201, 204, 268, 402, 408, 536, 787, 804, 1139, 1574, 1608, 2278, 2361, 3148, 3417, 4556, 4722, 6296, 6834, 9112, 9444, 13379, 13668, 18888, 26758, 27336, 40137, 52729, 53516, 80274, 105458, 107032, 158187, 160548, 210916, 316374, 321096, 421832, 632748, 896393, 1265496, 1792786, 2689179, 3585572, 5378358, 7171144, 10756716, 21513432]

約数ペア:

[(1, 21513432), (2, 10756716), (3, 7171144), (4, 5378358), (6, 3585572), (8, 2689179), (12, 1792786), (17, 1265496), (24, 896393), (34, 632748), (51, 421832), (67, 321096), (68, 316374), (102, 210916), (134, 160548), (136, 158187), (201, 107032), (204, 105458), (268, 80274), (402, 53516), (408, 52729), (536, 40137), (787, 27336), (804, 26758), (1139, 18888), (1574, 13668), (1608, 13379), (2278, 9444), (2361, 9112), (3148, 6834), (3417, 6296), (4556, 4722)]