20779996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3851}}^1$

素因数の和:3945

約数の個数: 24

約数和(自身を含む): 38828160

約数和(自身を除く): 18048164

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3851, 5396, 7702, 15404, 73169, 146338, 273421, 292676, 546842, 1093684, 5194999, 10389998, 20779996]

約数ペア:

[(1, 20779996), (2, 10389998), (4, 5194999), (19, 1093684), (38, 546842), (71, 292676), (76, 273421), (142, 146338), (284, 73169), (1349, 15404), (2698, 7702), (3851, 5396)]