81884243

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 100944720

約数和(自身を除く): 19060477

約数列:

[1, 7, 19, 49, 133, 281, 313, 931, 1967, 2191, 5339, 5947, 13769, 15337, 37373, 41629, 87953, 261611, 291403, 615671, 1671107, 4309697, 11697749, 81884243]

約数ペア:

[(1, 81884243), (7, 11697749), (19, 4309697), (49, 1671107), (133, 615671), (281, 291403), (313, 261611), (931, 87953), (1967, 41629), (2191, 37373), (5339, 15337), (5947, 13769)]