20889231

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3659}}^1$

素因数の和:3846

約数の個数: 16

約数和(自身を含む): 30568320

約数和(自身を除く): 9679089

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3659, 5709, 10977, 40249, 120747, 633007, 1899021, 6963077, 20889231]

約数ペア:

[(1, 20889231), (3, 6963077), (11, 1899021), (33, 633007), (173, 120747), (519, 40249), (1903, 10977), (3659, 5709)]