21802975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 28725840

約数和(自身を除く): 6922865

約数列:

[1, 5, 19, 25, 95, 197, 233, 475, 985, 1165, 3743, 4427, 4925, 5825, 18715, 22135, 45901, 93575, 110675, 229505, 872119, 1147525, 4360595, 21802975]

約数ペア:

[(1, 21802975), (5, 4360595), (19, 1147525), (25, 872119), (95, 229505), (197, 110675), (233, 93575), (475, 45901), (985, 22135), (1165, 18715), (3743, 5825), (4427, 4925)]