21700021825

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{21170753}}^1$

素因数の和:21170804

約数の個数: 12

約数和(自身を含む): 27564321708

約数和(自身を除く): 5864299883

約数列:

[1, 5, 25, 41, 205, 1025, 21170753, 105853765, 529268825, 868000873, 4340004365, 21700021825]

約数ペア:

[(1, 21700021825), (5, 4340004365), (25, 868000873), (41, 529268825), (205, 105853765), (1025, 21170753)]