21498272

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1861}}^1$

素因数の和:1909

約数の個数: 36

約数和(自身を含む): 44693586

約数和(自身を除く): 23195314

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1861, 2888, 3722, 5776, 7444, 11552, 14888, 29776, 35359, 59552, 70718, 141436, 282872, 565744, 671821, 1131488, 1343642, 2687284, 5374568, 10749136, 21498272]

約数ペア:

[(1, 21498272), (2, 10749136), (4, 5374568), (8, 2687284), (16, 1343642), (19, 1131488), (32, 671821), (38, 565744), (76, 282872), (152, 141436), (304, 70718), (361, 59552), (608, 35359), (722, 29776), (1444, 14888), (1861, 11552), (2888, 7444), (3722, 5776)]