21888898045

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1900903}}^1$

素因数の和:1900969

約数の個数: 24

約数和(自身を含む): 31205240064

約数和(自身を除く): 9316342019

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 2303, 11515, 1900903, 9504515, 13306321, 66531605, 89342441, 93144247, 446712205, 465721235, 625397087, 3126985435, 4377779609, 21888898045]

約数ペア:

[(1, 21888898045), (5, 4377779609), (7, 3126985435), (35, 625397087), (47, 465721235), (49, 446712205), (235, 93144247), (245, 89342441), (329, 66531605), (1645, 13306321), (2303, 9504515), (11515, 1900903)]