21813930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{242377}}^1$

素因数の和:242390

約数の個数: 24

約数和(自身を含む): 56716452

約数和(自身を除く): 34902522

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 242377, 484754, 727131, 1211885, 1454262, 2181393, 2423770, 3635655, 4362786, 7271310, 10906965, 21813930]

約数ペア:

[(1, 21813930), (2, 10906965), (3, 7271310), (5, 4362786), (6, 3635655), (9, 2423770), (10, 2181393), (15, 1454262), (18, 1211885), (30, 727131), (45, 484754), (90, 242377)]