1780857

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 2865408

約数和(自身を除く): 1084551

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 491, 1209, 1473, 3627, 4419, 6383, 15221, 19149, 45663, 57447, 136989, 197873, 593619, 1780857]

約数ペア:

[(1, 1780857), (3, 593619), (9, 197873), (13, 136989), (31, 57447), (39, 45663), (93, 19149), (117, 15221), (279, 6383), (403, 4419), (491, 3627), (1209, 1473)]