20187917104

素因数分解:

$2^4\times {\mathrm{821}}^1\times {\mathrm{1536839}}^1$

素因数の和:1537668

約数の個数: 20

約数和(自身を含む): 39161756880

約数和(自身を除く): 18973839776

約数列:

[1, 2, 4, 8, 16, 821, 1642, 3284, 6568, 13136, 1536839, 3073678, 6147356, 12294712, 24589424, 1261744819, 2523489638, 5046979276, 10093958552, 20187917104]

約数ペア:

[(1, 20187917104), (2, 10093958552), (4, 5046979276), (8, 2523489638), (16, 1261744819), (821, 24589424), (1642, 12294712), (3284, 6147356), (6568, 3073678), (13136, 1536839)]