21587716

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1249}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 39375000

約数和(自身を除く): 17787284

約数列:

[1, 2, 4, 29, 58, 116, 149, 298, 596, 1249, 2498, 4321, 4996, 8642, 17284, 36221, 72442, 144884, 186101, 372202, 744404, 5396929, 10793858, 21587716]

約数ペア:

[(1, 21587716), (2, 10793858), (4, 5396929), (29, 744404), (58, 372202), (116, 186101), (149, 144884), (298, 72442), (596, 36221), (1249, 17284), (2498, 8642), (4321, 4996)]