21502806

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{275677}}^1$

素因数の和:275695

約数の個数: 16

約数和(自身を含む): 46313904

約数和(自身を除く): 24811098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 275677, 551354, 827031, 1654062, 3583801, 7167602, 10751403, 21502806]

約数ペア:

[(1, 21502806), (2, 10751403), (3, 7167602), (6, 3583801), (13, 1654062), (26, 827031), (39, 551354), (78, 275677)]