20478315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9547}}^1$

素因数の和:9579

約数の個数: 32

約数和(自身を含む): 38497536

約数和(自身を除く): 18019221

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9547, 28641, 47735, 105017, 124111, 143205, 315051, 372333, 525085, 620555, 1365221, 1575255, 1861665, 4095663, 6826105, 20478315]

約数ペア:

[(1, 20478315), (3, 6826105), (5, 4095663), (11, 1861665), (13, 1575255), (15, 1365221), (33, 620555), (39, 525085), (55, 372333), (65, 315051), (143, 143205), (165, 124111), (195, 105017), (429, 47735), (715, 28641), (2145, 9547)]