289431531

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{7919}}^1$

素因数の和:8087

約数の個数: 24

約数和(自身を含む): 434903040

約数和(自身を除く): 145471509

約数列:

[1, 3, 9, 31, 93, 131, 279, 393, 1179, 4061, 7919, 12183, 23757, 36549, 71271, 245489, 736467, 1037389, 2209401, 3112167, 9336501, 32159059, 96477177, 289431531]

約数ペア:

[(1, 289431531), (3, 96477177), (9, 32159059), (31, 9336501), (93, 3112167), (131, 2209401), (279, 1037389), (393, 736467), (1179, 245489), (4061, 71271), (7919, 36549), (12183, 23757)]