20191237885

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{105407}}^1$

素因数の和:105853

約数の個数: 32

約数和(自身を含む): 29892022272

約数和(自身を除く): 9700784387

約数列:

[1, 5, 7, 13, 35, 65, 91, 421, 455, 2105, 2947, 5473, 14735, 27365, 38311, 105407, 191555, 527035, 737849, 1370291, 3689245, 6851455, 9592037, 44376347, 47960185, 221881735, 310634429, 576892511, 1553172145, 2884462555, 4038247577, 20191237885]

約数ペア:

[(1, 20191237885), (5, 4038247577), (7, 2884462555), (13, 1553172145), (35, 576892511), (65, 310634429), (91, 221881735), (421, 47960185), (455, 44376347), (2105, 9592037), (2947, 6851455), (5473, 3689245), (14735, 1370291), (27365, 737849), (38311, 527035), (105407, 191555)]