21000879804

素因数分解:

$2^2\times 3^1\times {\mathrm{571}}^1\times {\mathrm{937}}^1\times {\mathrm{3271}}^1$

素因数の和:4786

約数の個数: 48

約数和(自身を含む): 49155282176

約数和(自身を除く): 28154402372

約数列:

[1, 2, 3, 4, 6, 12, 571, 937, 1142, 1713, 1874, 2284, 2811, 3271, 3426, 3748, 5622, 6542, 6852, 9813, 11244, 13084, 19626, 39252, 535027, 1070054, 1605081, 1867741, 2140108, 3064927, 3210162, 3735482, 5603223, 6129854, 6420324, 7470964, 9194781, 11206446, 12259708, 18389562, 22412892, 36779124, 1750073317, 3500146634, 5250219951, 7000293268, 10500439902, 21000879804]

約数ペア:

[(1, 21000879804), (2, 10500439902), (3, 7000293268), (4, 5250219951), (6, 3500146634), (12, 1750073317), (571, 36779124), (937, 22412892), (1142, 18389562), (1713, 12259708), (1874, 11206446), (2284, 9194781), (2811, 7470964), (3271, 6420324), (3426, 6129854), (3748, 5603223), (5622, 3735482), (6542, 3210162), (6852, 3064927), (9813, 2140108), (11244, 1867741), (13084, 1605081), (19626, 1070054), (39252, 535027)]