21371255

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2239}}^1$

素因数の和:2350

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 5723785

約数列:

[1, 5, 23, 83, 115, 415, 1909, 2239, 9545, 11195, 51497, 185837, 257485, 929185, 4274251, 21371255]

約数ペア:

[(1, 21371255), (5, 4274251), (23, 929185), (83, 257485), (115, 185837), (415, 51497), (1909, 11195), (2239, 9545)]