21011529

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8269}}^1$

素因数の和:8301

約数の個数: 24

約数和(自身を含む): 35197120

約数和(自身を除く): 14185591

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8269, 24807, 57883, 90959, 173649, 272877, 636713, 1000549, 1910139, 3001647, 7003843, 21011529]

約数ペア:

[(1, 21011529), (3, 7003843), (7, 3001647), (11, 1910139), (21, 1000549), (33, 636713), (77, 272877), (121, 173649), (231, 90959), (363, 57883), (847, 24807), (2541, 8269)]