21521292

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137957}}^1$

素因数の和:137977

約数の個数: 24

約数和(自身を含む): 54079536

約数和(自身を除く): 32558244

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137957, 275914, 413871, 551828, 827742, 1655484, 1793441, 3586882, 5380323, 7173764, 10760646, 21521292]

約数ペア:

[(1, 21521292), (2, 10760646), (3, 7173764), (4, 5380323), (6, 3586882), (12, 1793441), (13, 1655484), (26, 827742), (39, 551828), (52, 413871), (78, 275914), (156, 137957)]