21863220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3343}}^1$

素因数の和:3464

約数の個数: 48

約数和(自身を含む): 61797120

約数和(自身を除く): 39933900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3270, 3343, 6540, 6686, 10029, 13372, 16715, 20058, 33430, 40116, 50145, 66860, 100290, 200580, 364387, 728774, 1093161, 1457548, 1821935, 2186322, 3643870, 4372644, 5465805, 7287740, 10931610, 21863220]

約数ペア:

[(1, 21863220), (2, 10931610), (3, 7287740), (4, 5465805), (5, 4372644), (6, 3643870), (10, 2186322), (12, 1821935), (15, 1457548), (20, 1093161), (30, 728774), (60, 364387), (109, 200580), (218, 100290), (327, 66860), (436, 50145), (545, 40116), (654, 33430), (1090, 20058), (1308, 16715), (1635, 13372), (2180, 10029), (3270, 6686), (3343, 6540)]