21243675

素因数分解:

$3^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1901}}^1$

素因数の和:2063

約数の個数: 24

約数和(自身を含む): 35377200

約数和(自身を除く): 14133525

約数列:

[1, 3, 5, 15, 25, 75, 149, 447, 745, 1901, 2235, 3725, 5703, 9505, 11175, 28515, 47525, 142575, 283249, 849747, 1416245, 4248735, 7081225, 21243675]

約数ペア:

[(1, 21243675), (3, 7081225), (5, 4248735), (15, 1416245), (25, 849747), (75, 283249), (149, 142575), (447, 47525), (745, 28515), (1901, 11175), (2235, 9505), (3725, 5703)]