21502604

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14891}}^1$

素因数の和:14933

約数の個数: 18

約数和(自身を含む): 39716964

約数和(自身を除く): 18214360

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14891, 29782, 59564, 282929, 565858, 1131716, 5375651, 10751302, 21502604]

約数ペア:

[(1, 21502604), (2, 10751302), (4, 5375651), (19, 1131716), (38, 565858), (76, 282929), (361, 59564), (722, 29782), (1444, 14891)]