28178127

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{2287}}^1$

素因数の和:2367

約数の個数: 18

約数和(自身を含む): 41849808

約数和(自身を除く): 13671681

約数列:

[1, 3, 9, 37, 111, 333, 1369, 2287, 4107, 6861, 12321, 20583, 84619, 253857, 761571, 3130903, 9392709, 28178127]

約数ペア:

[(1, 28178127), (3, 9392709), (9, 3130903), (37, 761571), (111, 253857), (333, 84619), (1369, 20583), (2287, 12321), (4107, 6861)]