21289004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11801}}^1$

素因数の和:11857

約数の個数: 24

約数和(自身を含む): 41637456

約数和(自身を除く): 20348452

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11801, 23602, 47204, 129811, 259622, 483841, 519244, 967682, 1935364, 5322251, 10644502, 21289004]

約数ペア:

[(1, 21289004), (2, 10644502), (4, 5322251), (11, 1935364), (22, 967682), (41, 519244), (44, 483841), (82, 259622), (164, 129811), (451, 47204), (902, 23602), (1804, 11801)]