21078168

素因数分解:

$2^3\times 3^1\times {\mathrm{347}}^1\times {\mathrm{2531}}^1$

素因数の和:2887

約数の個数: 32

約数和(自身を含む): 52868160

約数和(自身を除く): 31789992

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 347, 694, 1041, 1388, 2082, 2531, 2776, 4164, 5062, 7593, 8328, 10124, 15186, 20248, 30372, 60744, 878257, 1756514, 2634771, 3513028, 5269542, 7026056, 10539084, 21078168]

約数ペア:

[(1, 21078168), (2, 10539084), (3, 7026056), (4, 5269542), (6, 3513028), (8, 2634771), (12, 1756514), (24, 878257), (347, 60744), (694, 30372), (1041, 20248), (1388, 15186), (2082, 10124), (2531, 8328), (2776, 7593), (4164, 5062)]