42721690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20441}}^1$

素因数の和:20478

約数の個数: 32

約数和(自身を含む): 88309440

約数和(自身を除く): 45587750

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 20441, 40882, 102205, 204410, 224851, 388379, 449702, 776758, 1124255, 1941895, 2248510, 3883790, 4272169, 8544338, 21360845, 42721690]

約数ペア:

[(1, 42721690), (2, 21360845), (5, 8544338), (10, 4272169), (11, 3883790), (19, 2248510), (22, 1941895), (38, 1124255), (55, 776758), (95, 449702), (110, 388379), (190, 224851), (209, 204410), (418, 102205), (1045, 40882), (2090, 20441)]