21718130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{691}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 44841600

約数和(自身を除く): 23123470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 449, 691, 898, 1382, 2245, 3143, 3455, 4490, 4837, 6286, 6910, 9674, 15715, 24185, 31430, 48370, 310259, 620518, 1551295, 2171813, 3102590, 4343626, 10859065, 21718130]

約数ペア:

[(1, 21718130), (2, 10859065), (5, 4343626), (7, 3102590), (10, 2171813), (14, 1551295), (35, 620518), (70, 310259), (449, 48370), (691, 31430), (898, 24185), (1382, 15715), (2245, 9674), (3143, 6910), (3455, 6286), (4490, 4837)]