21911176

素因数分解:

$2^3\times 7^1\times {\mathrm{521}}^1\times {\mathrm{751}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 47105280

約数和(自身を除く): 25194104

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 521, 751, 1042, 1502, 2084, 3004, 3647, 4168, 5257, 6008, 7294, 10514, 14588, 21028, 29176, 42056, 391271, 782542, 1565084, 2738897, 3130168, 5477794, 10955588, 21911176]

約数ペア:

[(1, 21911176), (2, 10955588), (4, 5477794), (7, 3130168), (8, 2738897), (14, 1565084), (28, 782542), (56, 391271), (521, 42056), (751, 29176), (1042, 21028), (1502, 14588), (2084, 10514), (3004, 7294), (3647, 6008), (4168, 5257)]