21125127

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 29773440

約数和(自身を除く): 8648313

約数列:

[1, 3, 41, 59, 71, 123, 177, 213, 1681, 2419, 2911, 4189, 5043, 7257, 8733, 12567, 99179, 119351, 171749, 297537, 358053, 515247, 7041709, 21125127]

約数ペア:

[(1, 21125127), (3, 7041709), (41, 515247), (59, 358053), (71, 297537), (123, 171749), (177, 119351), (213, 99179), (1681, 12567), (2419, 8733), (2911, 7257), (4189, 5043)]