21975352

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5527}}^1$

素因数の和:5611

約数の個数: 32

約数和(自身を含む): 47761920

約数和(自身を除く): 25786568

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5527, 11054, 22108, 38689, 44216, 77378, 154756, 309512, 392417, 784834, 1569668, 2746919, 3139336, 5493838, 10987676, 21975352]

約数ペア:

[(1, 21975352), (2, 10987676), (4, 5493838), (7, 3139336), (8, 2746919), (14, 1569668), (28, 784834), (56, 392417), (71, 309512), (142, 154756), (284, 77378), (497, 44216), (568, 38689), (994, 22108), (1988, 11054), (3976, 5527)]