21897485

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 5197555

約数列:

[1, 5, 41, 205, 223, 479, 1115, 2395, 9143, 19639, 45715, 98195, 106817, 534085, 4379497, 21897485]

約数ペア:

[(1, 21897485), (5, 4379497), (41, 534085), (205, 106817), (223, 98195), (479, 45715), (1115, 19639), (2395, 9143)]