19908429

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 27224640

約数和(自身を除く): 7316211

約数列:

[1, 3, 59, 137, 177, 411, 821, 2463, 8083, 24249, 48439, 112477, 145317, 337431, 6636143, 19908429]

約数ペア:

[(1, 19908429), (3, 6636143), (59, 337431), (137, 145317), (177, 112477), (411, 48439), (821, 24249), (2463, 8083)]