821420159

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{5903}}^1$

素因数の和:6206

約数の個数: 16

約数和(自身を含む): 952952832

約数和(自身を除く): 131532673

約数列:

[1, 7, 103, 193, 721, 1351, 5903, 19879, 41321, 139153, 608009, 1139279, 4256063, 7974953, 117345737, 821420159]

約数ペア:

[(1, 821420159), (7, 117345737), (103, 7974953), (193, 4256063), (721, 1139279), (1351, 608009), (5903, 139153), (19879, 41321)]