21081378

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{48131}}^1$

素因数の和:48209

約数の個数: 16

約数和(自身を含む): 42741216

約数和(自身を除く): 21659838

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 48131, 96262, 144393, 288786, 3513563, 7027126, 10540689, 21081378]

約数ペア:

[(1, 21081378), (2, 10540689), (3, 7027126), (6, 3513563), (73, 288786), (146, 144393), (219, 96262), (438, 48131)]