21080198404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{1163}}^1\times {\mathrm{122471}}^1$

素因数の和:123675

約数の個数: 24

約数和(自身を含む): 37920270528

約数和(自身を除く): 16840072124

約数列:

[1, 2, 4, 37, 74, 148, 1163, 2326, 4652, 43031, 86062, 122471, 172124, 244942, 489884, 4531427, 9062854, 18125708, 142433773, 284867546, 569735092, 5270049601, 10540099202, 21080198404]

約数ペア:

[(1, 21080198404), (2, 10540099202), (4, 5270049601), (37, 569735092), (74, 284867546), (148, 142433773), (1163, 18125708), (2326, 9062854), (4652, 4531427), (43031, 489884), (86062, 244942), (122471, 172124)]