20189565

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40787}}^1$

素因数の和:40809

約数の個数: 24

約数和(自身を含む): 38177568

約数和(自身を除く): 17988003

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40787, 122361, 203935, 367083, 448657, 611805, 1345971, 1835415, 2243285, 4037913, 6729855, 20189565]

約数ペア:

[(1, 20189565), (3, 6729855), (5, 4037913), (9, 2243285), (11, 1835415), (15, 1345971), (33, 611805), (45, 448657), (55, 367083), (99, 203935), (165, 122361), (495, 40787)]