21152390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{673}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 43675200

約数和(自身を除く): 22522810

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 449, 673, 898, 1346, 2245, 3143, 3365, 4490, 4711, 6286, 6730, 9422, 15715, 23555, 31430, 47110, 302177, 604354, 1510885, 2115239, 3021770, 4230478, 10576195, 21152390]

約数ペア:

[(1, 21152390), (2, 10576195), (5, 4230478), (7, 3021770), (10, 2115239), (14, 1510885), (35, 604354), (70, 302177), (449, 47110), (673, 31430), (898, 23555), (1346, 15715), (2245, 9422), (3143, 6730), (3365, 6286), (4490, 4711)]