20121385136

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54677677}}^1$

素因数の和:54677708

約数の個数: 20

約数和(自身を含む): 40680192432

約数和(自身を除く): 20558807296

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54677677, 109355354, 218710708, 437421416, 874842832, 1257586571, 2515173142, 5030346284, 10060692568, 20121385136]

約数ペア:

[(1, 20121385136), (2, 10060692568), (4, 5030346284), (8, 2515173142), (16, 1257586571), (23, 874842832), (46, 437421416), (92, 218710708), (184, 109355354), (368, 54677677)]