18921990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{630733}}^1$

素因数の和:630743

約数の個数: 16

約数和(自身を含む): 45412848

約数和(自身を除く): 26490858

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 630733, 1261466, 1892199, 3153665, 3784398, 6307330, 9460995, 18921990]

約数ペア:

[(1, 18921990), (2, 9460995), (3, 6307330), (5, 3784398), (6, 3153665), (10, 1892199), (15, 1261466), (30, 630733)]