19886145

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{57641}}^1$

素因数の和:57672

約数の個数: 16

約数和(自身を含む): 33201792

約数和(自身を除く): 13315647

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 57641, 172923, 288205, 864615, 1325743, 3977229, 6628715, 19886145]

約数ペア:

[(1, 19886145), (3, 6628715), (5, 3977229), (15, 1325743), (23, 864615), (69, 288205), (115, 172923), (345, 57641)]