21958871

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 24828288

約数和(自身を除く): 2869417

約数列:

[1, 11, 37, 163, 331, 407, 1793, 3641, 6031, 12247, 53953, 66341, 134717, 593483, 1996261, 21958871]

約数ペア:

[(1, 21958871), (11, 1996261), (37, 593483), (163, 134717), (331, 66341), (407, 53953), (1793, 12247), (3641, 6031)]