9621981

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 36

約数和(自身を含む): 15183168

約数和(自身を除く): 5561187

約数列:

[1, 3, 9, 23, 43, 47, 69, 129, 141, 207, 387, 423, 529, 989, 1081, 1587, 2021, 2967, 3243, 4761, 6063, 8901, 9729, 18189, 22747, 24863, 46483, 68241, 74589, 139449, 204723, 223767, 418347, 1069109, 3207327, 9621981]

約数ペア:

[(1, 9621981), (3, 3207327), (9, 1069109), (23, 418347), (43, 223767), (47, 204723), (69, 139449), (129, 74589), (141, 68241), (207, 46483), (387, 24863), (423, 22747), (529, 18189), (989, 9729), (1081, 8901), (1587, 6063), (2021, 4761), (2967, 3243)]