21104996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11699}}^1$

素因数の和:11755

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 20172604

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11699, 23398, 46796, 128689, 257378, 479659, 514756, 959318, 1918636, 5276249, 10552498, 21104996]

約数ペア:

[(1, 21104996), (2, 10552498), (4, 5276249), (11, 1918636), (22, 959318), (41, 514756), (44, 479659), (82, 257378), (164, 128689), (451, 46796), (902, 23398), (1804, 11699)]