21301550

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10391}}^1$

素因数の和:10444

約数の個数: 24

約数和(自身を含む): 40591152

約数和(自身を除く): 19289602

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10391, 20782, 51955, 103910, 259775, 426031, 519550, 852062, 2130155, 4260310, 10650775, 21301550]

約数ペア:

[(1, 21301550), (2, 10650775), (5, 4260310), (10, 2130155), (25, 852062), (41, 519550), (50, 426031), (82, 259775), (205, 103910), (410, 51955), (1025, 20782), (2050, 10391)]