21640750

素因数分解:

$2^1\times 5^3\times {\mathrm{107}}^1\times {\mathrm{809}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 40940640

約数和(自身を除く): 19299890

約数列:

[1, 2, 5, 10, 25, 50, 107, 125, 214, 250, 535, 809, 1070, 1618, 2675, 4045, 5350, 8090, 13375, 20225, 26750, 40450, 86563, 101125, 173126, 202250, 432815, 865630, 2164075, 4328150, 10820375, 21640750]

約数ペア:

[(1, 21640750), (2, 10820375), (5, 4328150), (10, 2164075), (25, 865630), (50, 432815), (107, 202250), (125, 173126), (214, 101125), (250, 86563), (535, 40450), (809, 26750), (1070, 20225), (1618, 13375), (2675, 8090), (4045, 5350)]