21807688

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2251}}^1$

素因数の和:2437

約数の個数: 32

約数和(自身を含む): 47021760

約数和(自身を除く): 25214072

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2251, 2422, 4502, 4844, 9004, 9688, 15757, 18008, 31514, 63028, 126056, 389423, 778846, 1557692, 2725961, 3115384, 5451922, 10903844, 21807688]

約数ペア:

[(1, 21807688), (2, 10903844), (4, 5451922), (7, 3115384), (8, 2725961), (14, 1557692), (28, 778846), (56, 389423), (173, 126056), (346, 63028), (692, 31514), (1211, 18008), (1384, 15757), (2251, 9688), (2422, 9004), (4502, 4844)]