19915290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221281}}^1$

素因数の和:221294

約数の個数: 24

約数和(自身を含む): 51779988

約数和(自身を除く): 31864698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221281, 442562, 663843, 1106405, 1327686, 1991529, 2212810, 3319215, 3983058, 6638430, 9957645, 19915290]

約数ペア:

[(1, 19915290), (2, 9957645), (3, 6638430), (5, 3983058), (6, 3319215), (9, 2212810), (10, 1991529), (15, 1327686), (18, 1106405), (30, 663843), (45, 442562), (90, 221281)]