490257

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 24

約数和(自身を含む): 773760

約数和(自身を除く): 283503

約数列:

[1, 3, 9, 19, 47, 57, 61, 141, 171, 183, 423, 549, 893, 1159, 2679, 2867, 3477, 8037, 8601, 10431, 25803, 54473, 163419, 490257]

約数ペア:

[(1, 490257), (3, 163419), (9, 54473), (19, 25803), (47, 10431), (57, 8601), (61, 8037), (141, 3477), (171, 2867), (183, 2679), (423, 1159), (549, 893)]