21182525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9311}}^1$

素因数の和:9341

約数の個数: 24

約数和(自身を含む): 32331264

約数和(自身を除く): 11148739

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9311, 46555, 65177, 121043, 232775, 325885, 605215, 847301, 1629425, 3026075, 4236505, 21182525]

約数ペア:

[(1, 21182525), (5, 4236505), (7, 3026075), (13, 1629425), (25, 847301), (35, 605215), (65, 325885), (91, 232775), (175, 121043), (325, 65177), (455, 46555), (2275, 9311)]