20925878

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 36223200

約数和(自身を除く): 15297322

約数列:

[1, 2, 17, 19, 29, 34, 38, 58, 323, 493, 551, 646, 986, 1102, 1117, 2234, 9367, 18734, 18989, 21223, 32393, 37978, 42446, 64786, 360791, 550681, 615467, 721582, 1101362, 1230934, 10462939, 20925878]

約数ペア:

[(1, 20925878), (2, 10462939), (17, 1230934), (19, 1101362), (29, 721582), (34, 615467), (38, 550681), (58, 360791), (323, 64786), (493, 42446), (551, 37978), (646, 32393), (986, 21223), (1102, 18989), (1117, 18734), (2234, 9367)]