21817885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{907}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 27850176

約数和(自身を除く): 6032291

約数列:

[1, 5, 17, 85, 283, 907, 1415, 4535, 4811, 15419, 24055, 77095, 256681, 1283405, 4363577, 21817885]

約数ペア:

[(1, 21817885), (5, 4363577), (17, 1283405), (85, 256681), (283, 77095), (907, 24055), (1415, 15419), (4535, 4811)]