21885092

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 39190200

約数和(自身を除く): 17305108

約数列:

[1, 2, 4, 61, 122, 244, 257, 349, 514, 698, 1028, 1396, 15677, 21289, 31354, 42578, 62708, 85156, 89693, 179386, 358772, 5471273, 10942546, 21885092]

約数ペア:

[(1, 21885092), (2, 10942546), (4, 5471273), (61, 358772), (122, 179386), (244, 89693), (257, 85156), (349, 62708), (514, 42578), (698, 31354), (1028, 21289), (1396, 15677)]