505449

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 853632

約数和(自身を除く): 348183

約数列:

[1, 3, 7, 9, 21, 63, 71, 113, 213, 339, 497, 639, 791, 1017, 1491, 2373, 4473, 7119, 8023, 24069, 56161, 72207, 168483, 505449]

約数ペア:

[(1, 505449), (3, 168483), (7, 72207), (9, 56161), (21, 24069), (63, 8023), (71, 7119), (113, 4473), (213, 2373), (339, 1491), (497, 1017), (639, 791)]