21612788

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:1043

約数の個数: 24

約数和(自身を含む): 38867304

約数和(自身を除く): 17254516

約数列:

[1, 2, 4, 61, 101, 122, 202, 244, 404, 877, 1754, 3508, 6161, 12322, 24644, 53497, 88577, 106994, 177154, 213988, 354308, 5403197, 10806394, 21612788]

約数ペア:

[(1, 21612788), (2, 10806394), (4, 5403197), (61, 354308), (101, 213988), (122, 177154), (202, 106994), (244, 88577), (404, 53497), (877, 24644), (1754, 12322), (3508, 6161)]