28456497

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 44284240

約数和(自身を除く): 15827743

約数列:

[1, 3, 9, 23, 43, 69, 129, 139, 207, 387, 417, 529, 989, 1251, 1587, 2967, 3197, 4761, 5977, 8901, 9591, 17931, 22747, 28773, 53793, 68241, 73531, 137471, 204723, 220593, 412413, 661779, 1237239, 3161833, 9485499, 28456497]

約数ペア:

[(1, 28456497), (3, 9485499), (9, 3161833), (23, 1237239), (43, 661779), (69, 412413), (129, 220593), (139, 204723), (207, 137471), (387, 73531), (417, 68241), (529, 53793), (989, 28773), (1251, 22747), (1587, 17931), (2967, 9591), (3197, 8901), (4761, 5977)]