21008889725

素因数分解:

$5^2\times {\mathrm{227}}^1\times {\mathrm{3702007}}^1$

素因数の和:3702244

約数の個数: 12

約数和(自身を含む): 26165792544

約数和(自身を除く): 5156902819

約数列:

[1, 5, 25, 227, 1135, 5675, 3702007, 18510035, 92550175, 840355589, 4201777945, 21008889725]

約数ペア:

[(1, 21008889725), (5, 4201777945), (25, 840355589), (227, 92550175), (1135, 18510035), (5675, 3702007)]