2187507

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 3545856

約数和(自身を除く): 1358349

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 647, 1127, 1941, 3381, 4529, 13587, 14881, 31703, 44643, 95109, 104167, 312501, 729169, 2187507]

約数ペア:

[(1, 2187507), (3, 729169), (7, 312501), (21, 104167), (23, 95109), (49, 44643), (69, 31703), (147, 14881), (161, 13587), (483, 4529), (647, 3381), (1127, 1941)]