21123085

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2213}}^1$

素因数の和:2324

約数の個数: 16

約数和(自身を含む): 26780544

約数和(自身を除く): 5657459

約数列:

[1, 5, 23, 83, 115, 415, 1909, 2213, 9545, 11065, 50899, 183679, 254495, 918395, 4224617, 21123085]

約数ペア:

[(1, 21123085), (5, 4224617), (23, 918395), (83, 254495), (115, 183679), (415, 50899), (1909, 11065), (2213, 9545)]