221529

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 377568

約数和(自身を除く): 156039

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 137, 147, 231, 411, 539, 959, 1507, 1617, 2877, 4521, 6713, 10549, 20139, 31647, 73843, 221529]

約数ペア:

[(1, 221529), (3, 73843), (7, 31647), (11, 20139), (21, 10549), (33, 6713), (49, 4521), (77, 2877), (137, 1617), (147, 1507), (231, 959), (411, 539)]