21026264

素因数分解:

$2^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1571}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 45273600

約数和(自身を除く): 24247336

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 239, 478, 956, 1571, 1673, 1912, 3142, 3346, 6284, 6692, 10997, 12568, 13384, 21994, 43988, 87976, 375469, 750938, 1501876, 2628283, 3003752, 5256566, 10513132, 21026264]

約数ペア:

[(1, 21026264), (2, 10513132), (4, 5256566), (7, 3003752), (8, 2628283), (14, 1501876), (28, 750938), (56, 375469), (239, 87976), (478, 43988), (956, 21994), (1571, 13384), (1673, 12568), (1912, 10997), (3142, 6692), (3346, 6284)]