20212731

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29167}}^1$

素因数の和:29191

約数の個数: 24

約数和(自身を含む): 36401664

約数和(自身を除く): 16188933

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 29167, 87501, 204169, 262503, 320837, 612507, 962511, 1837521, 2245859, 2887533, 6737577, 20212731]

約数ペア:

[(1, 20212731), (3, 6737577), (7, 2887533), (9, 2245859), (11, 1837521), (21, 962511), (33, 612507), (63, 320837), (77, 262503), (99, 204169), (231, 87501), (693, 29167)]