21658689

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9743}}^1$

素因数の和:9781

約数の個数: 24

約数和(自身を含む): 35468160

約数和(自身を除く): 13809471

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9743, 29229, 87687, 126659, 185117, 379977, 555351, 1139931, 1666053, 2406521, 7219563, 21658689]

約数ペア:

[(1, 21658689), (3, 7219563), (9, 2406521), (13, 1666053), (19, 1139931), (39, 555351), (57, 379977), (117, 185117), (171, 126659), (247, 87687), (741, 29229), (2223, 9743)]