21696158410

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2681849}}^1$

素因数の和:2682665

約数の個数: 16

約数和(自身を含む): 39101373000

約数和(自身を除く): 17405214590

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 2681849, 5363698, 13409245, 26818490, 2169615841, 4339231682, 10848079205, 21696158410]

約数ペア:

[(1, 21696158410), (2, 10848079205), (5, 4339231682), (10, 2169615841), (809, 26818490), (1618, 13409245), (4045, 5363698), (8090, 2681849)]