20650257

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1133

約数の個数: 24

約数和(自身を含む): 31842720

約数和(自身を除く): 11192463

約数列:

[1, 3, 9, 17, 51, 139, 153, 417, 971, 1251, 2363, 2913, 7089, 8739, 16507, 21267, 49521, 134969, 148563, 404907, 1214721, 2294473, 6883419, 20650257]

約数ペア:

[(1, 20650257), (3, 6883419), (9, 2294473), (17, 1214721), (51, 404907), (139, 148563), (153, 134969), (417, 49521), (971, 21267), (1251, 16507), (2363, 8739), (2913, 7089)]