20121255812

素因数分解:

$2^2\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{697009}}^1$

素因数の和:698051

約数の個数: 24

約数和(自身を含む): 40281601920

約数和(自身を除く): 20160346108

約数列:

[1, 2, 4, 7, 14, 28, 1031, 2062, 4124, 7217, 14434, 28868, 697009, 1394018, 2788036, 4879063, 9758126, 19516252, 718616279, 1437232558, 2874465116, 5030313953, 10060627906, 20121255812]

約数ペア:

[(1, 20121255812), (2, 10060627906), (4, 5030313953), (7, 2874465116), (14, 1437232558), (28, 718616279), (1031, 19516252), (2062, 9758126), (4124, 4879063), (7217, 2788036), (14434, 1394018), (28868, 697009)]