220411121

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{4243}}^1$

素因数の和:4472

約数の個数: 16

約数和(自身を含む): 259529088

約数和(自身を除く): 39117967

約数列:

[1, 7, 41, 181, 287, 1267, 4243, 7421, 29701, 51947, 173963, 767983, 1217741, 5375881, 31487303, 220411121]

約数ペア:

[(1, 220411121), (7, 31487303), (41, 5375881), (181, 1217741), (287, 767983), (1267, 173963), (4243, 51947), (7421, 29701)]