331406972

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{490247}}^1$

素因数の和:490277

約数の個数: 18

約数和(自身を含む): 628007688

約数和(自身を除く): 296600716

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 490247, 980494, 1960988, 6373211, 12746422, 25492844, 82851743, 165703486, 331406972]

約数ペア:

[(1, 331406972), (2, 165703486), (4, 82851743), (13, 25492844), (26, 12746422), (52, 6373211), (169, 1960988), (338, 980494), (676, 490247)]