19326725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6389}}^1$

素因数の和:6421

約数の個数: 18

約数和(自身を含む): 26345970

約数和(自身を除く): 7019245

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6389, 31945, 70279, 159725, 351395, 773069, 1756975, 3865345, 19326725]

約数ペア:

[(1, 19326725), (5, 3865345), (11, 1756975), (25, 773069), (55, 351395), (121, 159725), (275, 70279), (605, 31945), (3025, 6389)]