207216121

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 252182528

約数和(自身を除く): 44966407

約数列:

[1, 7, 31, 73, 103, 127, 217, 511, 721, 889, 2263, 3193, 3937, 7519, 9271, 13081, 15841, 22351, 27559, 52633, 64897, 91567, 233089, 287401, 405511, 954913, 1631623, 2011807, 2838577, 6684391, 29602303, 207216121]

約数ペア:

[(1, 207216121), (7, 29602303), (31, 6684391), (73, 2838577), (103, 2011807), (127, 1631623), (217, 954913), (511, 405511), (721, 287401), (889, 233089), (2263, 91567), (3193, 64897), (3937, 52633), (7519, 27559), (9271, 22351), (13081, 15841)]