18690945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13693}}^1$

素因数の和:13721

約数の個数: 32

約数和(自身を含む): 36809472

約数和(自身を除く): 18118527

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 13693, 41079, 68465, 95851, 178009, 205395, 287553, 479255, 534027, 890045, 1246063, 1437765, 2670135, 3738189, 6230315, 18690945]

約数ペア:

[(1, 18690945), (3, 6230315), (5, 3738189), (7, 2670135), (13, 1437765), (15, 1246063), (21, 890045), (35, 534027), (39, 479255), (65, 287553), (91, 205395), (105, 178009), (195, 95851), (273, 68465), (455, 41079), (1365, 13693)]