21072928

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{38737}}^1$

素因数の和:38764

約数の個数: 24

約数和(自身を含む): 43928892

約数和(自身を除く): 22855964

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 38737, 77474, 154948, 309896, 619792, 658529, 1239584, 1317058, 2634116, 5268232, 10536464, 21072928]

約数ペア:

[(1, 21072928), (2, 10536464), (4, 5268232), (8, 2634116), (16, 1317058), (17, 1239584), (32, 658529), (34, 619792), (68, 309896), (136, 154948), (272, 77474), (544, 38737)]