12687831

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6379}}^1$

素因数の和:6415

約数の個数: 24

約数和(自身を含む): 20900880

約数和(自身を除く): 8213049

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 6379, 19137, 57411, 82927, 108443, 248781, 325329, 746343, 975987, 1409759, 4229277, 12687831]

約数ペア:

[(1, 12687831), (3, 4229277), (9, 1409759), (13, 975987), (17, 746343), (39, 325329), (51, 248781), (117, 108443), (153, 82927), (221, 57411), (663, 19137), (1989, 6379)]