20215818

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17827}}^1$

素因数の和:17848

約数の個数: 40

約数和(自身を含む): 51772512

約数和(自身を除く): 31556694

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 17827, 35654, 53481, 106962, 124789, 160443, 249578, 320886, 374367, 481329, 748734, 962658, 1123101, 1443987, 2246202, 2887974, 3369303, 6738606, 10107909, 20215818]

約数ペア:

[(1, 20215818), (2, 10107909), (3, 6738606), (6, 3369303), (7, 2887974), (9, 2246202), (14, 1443987), (18, 1123101), (21, 962658), (27, 748734), (42, 481329), (54, 374367), (63, 320886), (81, 249578), (126, 160443), (162, 124789), (189, 106962), (378, 53481), (567, 35654), (1134, 17827)]