20572825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9043}}^1$

素因数の和:9073

約数の個数: 24

約数和(自身を含む): 31400768

約数和(自身を除く): 10827943

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9043, 45215, 63301, 117559, 226075, 316505, 587795, 822913, 1582525, 2938975, 4114565, 20572825]

約数ペア:

[(1, 20572825), (5, 4114565), (7, 2938975), (13, 1582525), (25, 822913), (35, 587795), (65, 316505), (91, 226075), (175, 117559), (325, 63301), (455, 45215), (2275, 9043)]