21295175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{367}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 29021952

約数和(自身を除く): 7726777

約数列:

[1, 5, 11, 25, 55, 211, 275, 367, 1055, 1835, 2321, 4037, 5275, 9175, 11605, 20185, 58025, 77437, 100925, 387185, 851807, 1935925, 4259035, 21295175]

約数ペア:

[(1, 21295175), (5, 4259035), (11, 1935925), (25, 851807), (55, 387185), (211, 100925), (275, 77437), (367, 58025), (1055, 20185), (1835, 11605), (2321, 9175), (4037, 5275)]