408021309

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{8747}}^1$

素因数の和:8897

約数の個数: 24

約数和(自身を含む): 605921472

約数和(自身を除く): 197900163

約数列:

[1, 3, 9, 71, 73, 213, 219, 639, 657, 5183, 8747, 15549, 26241, 46647, 78723, 621037, 638531, 1863111, 1915593, 5589333, 5746779, 45335701, 136007103, 408021309]

約数ペア:

[(1, 408021309), (3, 136007103), (9, 45335701), (71, 5746779), (73, 5589333), (213, 1915593), (219, 1863111), (639, 638531), (657, 621037), (5183, 78723), (8747, 46647), (15549, 26241)]