19946972

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{283}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 35688576

約数和(自身を除く): 15741604

約数列:

[1, 2, 4, 67, 134, 263, 268, 283, 526, 566, 1052, 1132, 17621, 18961, 35242, 37922, 70484, 74429, 75844, 148858, 297716, 4986743, 9973486, 19946972]

約数ペア:

[(1, 19946972), (2, 9973486), (4, 4986743), (67, 297716), (134, 148858), (263, 75844), (268, 74429), (283, 70484), (526, 37922), (566, 35242), (1052, 18961), (1132, 17621)]