17972409

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1531}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 30198784

約数和(自身を除く): 12226375

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1531, 1677, 3913, 4593, 10717, 11739, 19903, 32151, 59709, 65833, 139321, 197499, 417963, 460831, 855829, 1382493, 2567487, 5990803, 17972409]

約数ペア:

[(1, 17972409), (3, 5990803), (7, 2567487), (13, 1382493), (21, 855829), (39, 460831), (43, 417963), (91, 197499), (129, 139321), (273, 65833), (301, 59709), (559, 32151), (903, 19903), (1531, 11739), (1677, 10717), (3913, 4593)]