20703494

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10639}}^1$

素因数の和:10787

約数の個数: 16

約数和(自身を含む): 35750400

約数和(自身を除く): 15046906

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10639, 21278, 74473, 148946, 1478821, 2957642, 10351747, 20703494]

約数ペア:

[(1, 20703494), (2, 10351747), (7, 2957642), (14, 1478821), (139, 148946), (278, 74473), (973, 21278), (1946, 10639)]