20867145

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{947}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 36312192

約数和(自身を除く): 15445047

約数列:

[1, 3, 5, 13, 15, 39, 65, 113, 195, 339, 565, 947, 1469, 1695, 2841, 4407, 4735, 7345, 12311, 14205, 22035, 36933, 61555, 107011, 184665, 321033, 535055, 1391143, 1605165, 4173429, 6955715, 20867145]

約数ペア:

[(1, 20867145), (3, 6955715), (5, 4173429), (13, 1605165), (15, 1391143), (39, 535055), (65, 321033), (113, 184665), (195, 107011), (339, 61555), (565, 36933), (947, 22035), (1469, 14205), (1695, 12311), (2841, 7345), (4407, 4735)]