20215043821

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1\times {\mathrm{62539}}^1$

素因数の和:63364

約数の個数: 16

約数和(自身を含む): 23513038720

約数和(自身を除く): 3297994899

約数列:

[1, 7, 61, 427, 757, 5299, 46177, 62539, 323239, 437773, 3814879, 26704153, 47342023, 331394161, 2887863403, 20215043821]

約数ペア:

[(1, 20215043821), (7, 2887863403), (61, 331394161), (427, 47342023), (757, 26704153), (5299, 3814879), (46177, 437773), (62539, 323239)]