21650788

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1503

約数の個数: 24

約数和(自身を含む): 39241944

約数和(自身を除く): 17591156

約数列:

[1, 2, 4, 41, 82, 97, 164, 194, 388, 1361, 2722, 3977, 5444, 7954, 15908, 55801, 111602, 132017, 223204, 264034, 528068, 5412697, 10825394, 21650788]

約数ペア:

[(1, 21650788), (2, 10825394), (4, 5412697), (41, 528068), (82, 264034), (97, 223204), (164, 132017), (194, 111602), (388, 55801), (1361, 15908), (2722, 7954), (3977, 5444)]