21318256

素因数分解:

$2^4\times {\mathrm{787}}^1\times {\mathrm{1693}}^1$

素因数の和:2488

約数の個数: 20

約数和(自身を含む): 41381032

約数和(自身を除く): 20062776

約数列:

[1, 2, 4, 8, 16, 787, 1574, 1693, 3148, 3386, 6296, 6772, 12592, 13544, 27088, 1332391, 2664782, 5329564, 10659128, 21318256]

約数ペア:

[(1, 21318256), (2, 10659128), (4, 5329564), (8, 2664782), (16, 1332391), (787, 27088), (1574, 13544), (1693, 12592), (3148, 6772), (3386, 6296)]