21284435

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1117}}^1$

素因数の和:1262

約数の個数: 16

約数和(自身を含む): 26510016

約数和(自身を除く): 5225581

約数列:

[1, 5, 37, 103, 185, 515, 1117, 3811, 5585, 19055, 41329, 115051, 206645, 575255, 4256887, 21284435]

約数ペア:

[(1, 21284435), (5, 4256887), (37, 575255), (103, 206645), (185, 115051), (515, 41329), (1117, 19055), (3811, 5585)]