20891716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9479}}^1$

素因数の和:9531

約数の個数: 24

約数和(自身を含む): 39816000

約数和(自身を除く): 18924284

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 551, 1102, 2204, 9479, 18958, 37916, 180101, 274891, 360202, 549782, 720404, 1099564, 5222929, 10445858, 20891716]

約数ペア:

[(1, 20891716), (2, 10445858), (4, 5222929), (19, 1099564), (29, 720404), (38, 549782), (58, 360202), (76, 274891), (116, 180101), (551, 37916), (1102, 18958), (2204, 9479)]