217132489

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{22109}}^1$

素因数の和:22200

約数の個数: 16

約数和(自身を含む): 263197440

約数和(自身を除く): 46064951

約数列:

[1, 7, 23, 61, 161, 427, 1403, 9821, 22109, 154763, 508507, 1348649, 3559549, 9440543, 31018927, 217132489]

約数ペア:

[(1, 217132489), (7, 31018927), (23, 9440543), (61, 3559549), (161, 1348649), (427, 508507), (1403, 154763), (9821, 22109)]