21477195

素因数分解:

$3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1723}}^1$

素因数の和:2011

約数の個数: 24

約数和(自身を含む): 37383216

約数和(自身を除く): 15906021

約数列:

[1, 3, 5, 9, 15, 45, 277, 831, 1385, 1723, 2493, 4155, 5169, 8615, 12465, 15507, 25845, 77535, 477271, 1431813, 2386355, 4295439, 7159065, 21477195]

約数ペア:

[(1, 21477195), (3, 7159065), (5, 4295439), (9, 2386355), (15, 1431813), (45, 477271), (277, 77535), (831, 25845), (1385, 15507), (1723, 12465), (2493, 8615), (4155, 5169)]