38987793

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{25633}}^1$

素因数の和:25665

約数の個数: 18

約数和(自身を含む): 60983286

約数和(自身を除く): 21995493

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 25633, 76899, 230697, 333229, 999687, 2999061, 4331977, 12995931, 38987793]

約数ペア:

[(1, 38987793), (3, 12995931), (9, 4331977), (13, 2999061), (39, 999687), (117, 333229), (169, 230697), (507, 76899), (1521, 25633)]