21886580

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2729}}^1$

素因数の和:3139

約数の個数: 24

約数和(自身を含む): 46093320

約数和(自身を除く): 24206740

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 2729, 4010, 5458, 8020, 10916, 13645, 27290, 54580, 1094329, 2188658, 4377316, 5471645, 10943290, 21886580]

約数ペア:

[(1, 21886580), (2, 10943290), (4, 5471645), (5, 4377316), (10, 2188658), (20, 1094329), (401, 54580), (802, 27290), (1604, 13645), (2005, 10916), (2729, 8020), (4010, 5458)]