20121084

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4021}}^1$

素因数の和:4170

約数の個数: 36

約数和(自身を含む): 51240280

約数和(自身を除く): 31119196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4021, 5004, 8042, 12063, 16084, 24126, 36189, 48252, 72378, 144756, 558919, 1117838, 1676757, 2235676, 3353514, 5030271, 6707028, 10060542, 20121084]

約数ペア:

[(1, 20121084), (2, 10060542), (3, 6707028), (4, 5030271), (6, 3353514), (9, 2235676), (12, 1676757), (18, 1117838), (36, 558919), (139, 144756), (278, 72378), (417, 48252), (556, 36189), (834, 24126), (1251, 16084), (1668, 12063), (2502, 8042), (4021, 5004)]