20987322

素因数分解:

$2^1\times 3^1\times {\mathrm{173}}^1\times {\mathrm{20219}}^1$

素因数の和:20397

約数の個数: 16

約数和(自身を含む): 42219360

約数和(自身を除く): 21232038

約数列:

[1, 2, 3, 6, 173, 346, 519, 1038, 20219, 40438, 60657, 121314, 3497887, 6995774, 10493661, 20987322]

約数ペア:

[(1, 20987322), (2, 10493661), (3, 6995774), (6, 3497887), (173, 121314), (346, 60657), (519, 40438), (1038, 20219)]