315981

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 20

約数和(自身を含む): 487872

約数和(自身を除く): 171891

約数列:

[1, 3, 9, 27, 47, 81, 83, 141, 249, 423, 747, 1269, 2241, 3807, 3901, 6723, 11703, 35109, 105327, 315981]

約数ペア:

[(1, 315981), (3, 105327), (9, 35109), (27, 11703), (47, 6723), (81, 3901), (83, 3807), (141, 2241), (249, 1269), (423, 747)]