18807579

素因数分解:

$3^3\times 7^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 13264101

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 191, 521, 573, 1337, 1563, 1719, 3647, 4011, 4689, 5157, 10941, 12033, 14067, 32823, 36099, 98469, 99511, 298533, 696577, 895599, 2089731, 2686797, 6269193, 18807579]

約数ペア:

[(1, 18807579), (3, 6269193), (7, 2686797), (9, 2089731), (21, 895599), (27, 696577), (63, 298533), (189, 99511), (191, 98469), (521, 36099), (573, 32823), (1337, 14067), (1563, 12033), (1719, 10941), (3647, 5157), (4011, 4689)]