21499413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{3301}}^1$

素因数の和:3484

約数の個数: 16

約数和(自身を含む): 31065216

約数和(自身を除く): 9565803

約数列:

[1, 3, 13, 39, 167, 501, 2171, 3301, 6513, 9903, 42913, 128739, 551267, 1653801, 7166471, 21499413]

約数ペア:

[(1, 21499413), (3, 7166471), (13, 1653801), (39, 551267), (167, 128739), (501, 42913), (2171, 9903), (3301, 6513)]