20952925

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7043}}^1$

素因数の和:7077

約数の個数: 24

約数和(自身を含む): 31444416

約数和(自身を除く): 10491491

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 7043, 35215, 49301, 119731, 176075, 246505, 598655, 838117, 1232525, 2993275, 4190585, 20952925]

約数ペア:

[(1, 20952925), (5, 4190585), (7, 2993275), (17, 1232525), (25, 838117), (35, 598655), (85, 246505), (119, 176075), (175, 119731), (425, 49301), (595, 35215), (2975, 7043)]