21530615

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1789}}^1$

素因数の和:1906

約数の個数: 16

約数和(自身を含む): 27064800

約数和(自身を除く): 5534185

約数列:

[1, 5, 29, 83, 145, 415, 1789, 2407, 8945, 12035, 51881, 148487, 259405, 742435, 4306123, 21530615]

約数ペア:

[(1, 21530615), (5, 4306123), (29, 742435), (83, 259405), (145, 148487), (415, 51881), (1789, 12035), (2407, 8945)]