21212220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1013}}^1$

素因数の和:1374

約数の個数: 48

約数和(自身を含む): 59623200

約数和(自身を除く): 38410980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 1013, 1047, 1396, 1745, 2026, 2094, 3039, 3490, 4052, 4188, 5065, 5235, 6078, 6980, 10130, 10470, 12156, 15195, 20260, 20940, 30390, 60780, 353537, 707074, 1060611, 1414148, 1767685, 2121222, 3535370, 4242444, 5303055, 7070740, 10606110, 21212220]

約数ペア:

[(1, 21212220), (2, 10606110), (3, 7070740), (4, 5303055), (5, 4242444), (6, 3535370), (10, 2121222), (12, 1767685), (15, 1414148), (20, 1060611), (30, 707074), (60, 353537), (349, 60780), (698, 30390), (1013, 20940), (1047, 20260), (1396, 15195), (1745, 12156), (2026, 10470), (2094, 10130), (3039, 6980), (3490, 6078), (4052, 5235), (4188, 5065)]