20695758

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 42550272

約数和(自身を除く): 21854514

約数列:

[1, 2, 3, 6, 53, 106, 151, 159, 302, 318, 431, 453, 862, 906, 1293, 2586, 8003, 16006, 22843, 24009, 45686, 48018, 65081, 68529, 130162, 137058, 195243, 390486, 3449293, 6898586, 10347879, 20695758]

約数ペア:

[(1, 20695758), (2, 10347879), (3, 6898586), (6, 3449293), (53, 390486), (106, 195243), (151, 137058), (159, 130162), (302, 68529), (318, 65081), (431, 48018), (453, 45686), (862, 24009), (906, 22843), (1293, 16006), (2586, 8003)]