21289290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64513}}^1$

素因数の和:64534

約数の個数: 32

約数和(自身を含む): 55740096

約数和(自身を除く): 34450806

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64513, 129026, 193539, 322565, 387078, 645130, 709643, 967695, 1419286, 1935390, 2128929, 3548215, 4257858, 7096430, 10644645, 21289290]

約数ペア:

[(1, 21289290), (2, 10644645), (3, 7096430), (5, 4257858), (6, 3548215), (10, 2128929), (11, 1935390), (15, 1419286), (22, 967695), (30, 709643), (33, 645130), (55, 387078), (66, 322565), (110, 193539), (165, 129026), (330, 64513)]