21051352

素因数分解:

$2^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2251}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 45400320

約数和(自身を除く): 24348968

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 167, 334, 668, 1169, 1336, 2251, 2338, 4502, 4676, 9004, 9352, 15757, 18008, 31514, 63028, 126056, 375917, 751834, 1503668, 2631419, 3007336, 5262838, 10525676, 21051352]

約数ペア:

[(1, 21051352), (2, 10525676), (4, 5262838), (7, 3007336), (8, 2631419), (14, 1503668), (28, 751834), (56, 375917), (167, 126056), (334, 63028), (668, 31514), (1169, 18008), (1336, 15757), (2251, 9352), (2338, 9004), (4502, 4676)]