21311125

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{1409}}^1$

素因数の和:1446

約数の個数: 24

約数和(自身を含む): 29254680

約数和(自身を除く): 7943555

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 1375, 1409, 3025, 7045, 15125, 15499, 35225, 77495, 170489, 176125, 387475, 852445, 1937375, 4262225, 21311125]

約数ペア:

[(1, 21311125), (5, 4262225), (11, 1937375), (25, 852445), (55, 387475), (121, 176125), (125, 170489), (275, 77495), (605, 35225), (1375, 15499), (1409, 15125), (3025, 7045)]