21237647529

素因数分解:

$3^1\times 7^1\times {\mathrm{1249}}^1\times {\mathrm{809701}}^1$

素因数の和:810960

約数の個数: 16

約数和(自身を含む): 32388080000

約数和(自身を除く): 11150432471

約数列:

[1, 3, 7, 21, 1249, 3747, 8743, 26229, 809701, 2429103, 5667907, 17003721, 1011316549, 3033949647, 7079215843, 21237647529]

約数ペア:

[(1, 21237647529), (3, 7079215843), (7, 3033949647), (21, 1011316549), (1249, 17003721), (3747, 5667907), (8743, 2429103), (26229, 809701)]