21792550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2579}}^1$

素因数の和:2617

約数の個数: 36

約数和(自身を含む): 43909020

約数和(自身を除く): 22116470

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2579, 4225, 5158, 8450, 12895, 25790, 33527, 64475, 67054, 128950, 167635, 335270, 435851, 838175, 871702, 1676350, 2179255, 4358510, 10896275, 21792550]

約数ペア:

[(1, 21792550), (2, 10896275), (5, 4358510), (10, 2179255), (13, 1676350), (25, 871702), (26, 838175), (50, 435851), (65, 335270), (130, 167635), (169, 128950), (325, 67054), (338, 64475), (650, 33527), (845, 25790), (1690, 12895), (2579, 8450), (4225, 5158)]