397627828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{31729}}^1$

素因数の和:31987

約数の個数: 24

約数和(自身を含む): 752508680

約数和(自身を除く): 354880852

約数列:

[1, 2, 4, 13, 26, 52, 241, 482, 964, 3133, 6266, 12532, 31729, 63458, 126916, 412477, 824954, 1649908, 7646689, 15293378, 30586756, 99406957, 198813914, 397627828]

約数ペア:

[(1, 397627828), (2, 198813914), (4, 99406957), (13, 30586756), (26, 15293378), (52, 7646689), (241, 1649908), (482, 824954), (964, 412477), (3133, 126916), (6266, 63458), (12532, 31729)]