20808116

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39113}}^1$

素因数の和:39143

約数の個数: 24

約数和(自身を含む): 43807680

約数和(自身を除く): 22999564

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39113, 78226, 156452, 273791, 547582, 743147, 1095164, 1486294, 2972588, 5202029, 10404058, 20808116]

約数ペア:

[(1, 20808116), (2, 10404058), (4, 5202029), (7, 2972588), (14, 1486294), (19, 1095164), (28, 743147), (38, 547582), (76, 273791), (133, 156452), (266, 78226), (532, 39113)]