21106765

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{773}}^1$

素因数の和:948

約数の個数: 16

約数和(自身を含む): 26155008

約数和(自身を除く): 5048243

約数列:

[1, 5, 43, 127, 215, 635, 773, 3865, 5461, 27305, 33239, 98171, 166195, 490855, 4221353, 21106765]

約数ペア:

[(1, 21106765), (5, 4221353), (43, 490855), (127, 166195), (215, 98171), (635, 33239), (773, 27305), (3865, 5461)]