20954620

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2011}}^1$

素因数の和:2541

約数の個数: 24

約数和(自身を含む): 44111088

約数和(自身を除く): 23156468

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2011, 2084, 2605, 4022, 5210, 8044, 10055, 10420, 20110, 40220, 1047731, 2095462, 4190924, 5238655, 10477310, 20954620]

約数ペア:

[(1, 20954620), (2, 10477310), (4, 5238655), (5, 4190924), (10, 2095462), (20, 1047731), (521, 40220), (1042, 20110), (2011, 10420), (2084, 10055), (2605, 8044), (4022, 5210)]