18501879

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 9514761

約数列:

[1, 3, 11, 33, 47, 79, 141, 151, 237, 453, 517, 869, 1551, 1661, 2607, 3713, 4983, 7097, 11139, 11929, 21291, 35787, 40843, 78067, 122529, 131219, 234201, 393657, 560663, 1681989, 6167293, 18501879]

約数ペア:

[(1, 18501879), (3, 6167293), (11, 1681989), (33, 560663), (47, 393657), (79, 234201), (141, 131219), (151, 122529), (237, 78067), (453, 40843), (517, 35787), (869, 21291), (1551, 11929), (1661, 11139), (2607, 7097), (3713, 4983)]