20953775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1049}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7169425

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1049, 1175, 3995, 5245, 17833, 19975, 26225, 49303, 89165, 246515, 445825, 838151, 1232575, 4190755, 20953775]

約数ペア:

[(1, 20953775), (5, 4190755), (17, 1232575), (25, 838151), (47, 445825), (85, 246515), (235, 89165), (425, 49303), (799, 26225), (1049, 19975), (1175, 17833), (3995, 5245)]