21053420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36299}}^1$

素因数の和:36337

約数の個数: 24

約数和(自身を含む): 45738000

約数和(自身を除く): 24684580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36299, 72598, 145196, 181495, 362990, 725980, 1052671, 2105342, 4210684, 5263355, 10526710, 21053420]

約数ペア:

[(1, 21053420), (2, 10526710), (4, 5263355), (5, 4210684), (10, 2105342), (20, 1052671), (29, 725980), (58, 362990), (116, 181495), (145, 145196), (290, 72598), (580, 36299)]