257991177

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{1129}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 365089440

約数和(自身を除く): 107098263

約数列:

[1, 3, 19, 57, 211, 361, 633, 1083, 1129, 3387, 4009, 12027, 21451, 64353, 76171, 228513, 238219, 407569, 714657, 1222707, 4526161, 13578483, 85997059, 257991177]

約数ペア:

[(1, 257991177), (3, 85997059), (19, 13578483), (57, 4526161), (211, 1222707), (361, 714657), (633, 407569), (1083, 238219), (1129, 228513), (3387, 76171), (4009, 64353), (12027, 21451)]