20612205

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2503}}^1$

素因数の和:2578

約数の個数: 32

約数和(自身を含む): 37259520

約数和(自身を除く): 16647315

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2503, 2745, 7509, 8235, 12515, 22527, 37545, 67581, 112635, 152683, 337905, 458049, 763415, 1374147, 2290245, 4122441, 6870735, 20612205]

約数ペア:

[(1, 20612205), (3, 6870735), (5, 4122441), (9, 2290245), (15, 1374147), (27, 763415), (45, 458049), (61, 337905), (135, 152683), (183, 112635), (305, 67581), (549, 37545), (915, 22527), (1647, 12515), (2503, 8235), (2745, 7509)]