21568239

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31123}}^1$

素因数の和:31147

約数の個数: 24

約数和(自身を含む): 38842752

約数和(自身を除く): 17274513

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31123, 93369, 217861, 280107, 342353, 653583, 1027059, 1960749, 2396471, 3081177, 7189413, 21568239]

約数ペア:

[(1, 21568239), (3, 7189413), (7, 3081177), (9, 2396471), (11, 1960749), (21, 1027059), (33, 653583), (63, 342353), (77, 280107), (99, 217861), (231, 93369), (693, 31123)]