338587431

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1240247}}^1$

素因数の和:1240270

約数の個数: 16

約数和(自身を含む): 555631104

約数和(自身を除く): 217043673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 1240247, 3720741, 8681729, 16123211, 26045187, 48369633, 112862477, 338587431]

約数ペア:

[(1, 338587431), (3, 112862477), (7, 48369633), (13, 26045187), (21, 16123211), (39, 8681729), (91, 3720741), (273, 1240247)]