21853675

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 28725840

約数和(自身を除く): 6872165

約数列:

[1, 5, 25, 29, 43, 145, 215, 701, 725, 1075, 1247, 3505, 6235, 17525, 20329, 30143, 31175, 101645, 150715, 508225, 753575, 874147, 4370735, 21853675]

約数ペア:

[(1, 21853675), (5, 4370735), (25, 874147), (29, 753575), (43, 508225), (145, 150715), (215, 101645), (701, 31175), (725, 30143), (1075, 20329), (1247, 17525), (3505, 6235)]