21656628

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{12277}}^1$

素因数の和:12301

約数の個数: 54

約数和(自身を含む): 63685986

約数和(自身を除く): 42029358

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 12277, 24554, 36831, 49108, 73662, 85939, 110493, 147324, 171878, 220986, 257817, 343756, 441972, 515634, 601573, 773451, 1031268, 1203146, 1546902, 1804719, 2406292, 3093804, 3609438, 5414157, 7218876, 10828314, 21656628]

約数ペア:

[(1, 21656628), (2, 10828314), (3, 7218876), (4, 5414157), (6, 3609438), (7, 3093804), (9, 2406292), (12, 1804719), (14, 1546902), (18, 1203146), (21, 1031268), (28, 773451), (36, 601573), (42, 515634), (49, 441972), (63, 343756), (84, 257817), (98, 220986), (126, 171878), (147, 147324), (196, 110493), (252, 85939), (294, 73662), (441, 49108), (588, 36831), (882, 24554), (1764, 12277)]