20512982

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1196

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17226538

約数列:

[1, 2, 7, 14, 17, 34, 79, 119, 158, 238, 553, 1091, 1106, 1343, 2182, 2686, 7637, 9401, 15274, 18547, 18802, 37094, 86189, 129829, 172378, 259658, 603323, 1206646, 1465213, 2930426, 10256491, 20512982]

約数ペア:

[(1, 20512982), (2, 10256491), (7, 2930426), (14, 1465213), (17, 1206646), (34, 603323), (79, 259658), (119, 172378), (158, 129829), (238, 86189), (553, 37094), (1091, 18802), (1106, 18547), (1343, 15274), (2182, 9401), (2686, 7637)]