220272409

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1\times {\mathrm{1103}}^1$

素因数の和:1764

約数の個数: 16

約数和(自身を含む): 257753088

約数和(自身を除く): 37480679

約数列:

[1, 7, 47, 329, 607, 1103, 4249, 7721, 28529, 51841, 199703, 362887, 669521, 4686647, 31467487, 220272409]

約数ペア:

[(1, 220272409), (7, 31467487), (47, 4686647), (329, 669521), (607, 362887), (1103, 199703), (4249, 51841), (7721, 28529)]