21783568

素因数分解:

$2^4\times {\mathrm{613}}^1\times {\mathrm{2221}}^1$

素因数の和:2842

約数の個数: 20

約数和(自身を含む): 42293548

約数和(自身を除く): 20509980

約数列:

[1, 2, 4, 8, 16, 613, 1226, 2221, 2452, 4442, 4904, 8884, 9808, 17768, 35536, 1361473, 2722946, 5445892, 10891784, 21783568]

約数ペア:

[(1, 21783568), (2, 10891784), (4, 5445892), (8, 2722946), (16, 1361473), (613, 35536), (1226, 17768), (2221, 9808), (2452, 8884), (4442, 4904)]