21493278

素因数分解:

$2^1\times 3^2\times {\mathrm{113}}^1\times {\mathrm{10567}}^1$

素因数の和:10688

約数の個数: 24

約数和(自身を含む): 46985328

約数和(自身を除く): 25492050

約数列:

[1, 2, 3, 6, 9, 18, 113, 226, 339, 678, 1017, 2034, 10567, 21134, 31701, 63402, 95103, 190206, 1194071, 2388142, 3582213, 7164426, 10746639, 21493278]

約数ペア:

[(1, 21493278), (2, 10746639), (3, 7164426), (6, 3582213), (9, 2388142), (18, 1194071), (113, 190206), (226, 95103), (339, 63402), (678, 31701), (1017, 21134), (2034, 10567)]