21196664

素因数分解:

$2^3\times {\mathrm{443}}^1\times {\mathrm{5981}}^1$

素因数の和:6430

約数の個数: 16

約数和(自身を含む): 39840120

約数和(自身を除く): 18643456

約数列:

[1, 2, 4, 8, 443, 886, 1772, 3544, 5981, 11962, 23924, 47848, 2649583, 5299166, 10598332, 21196664]

約数ペア:

[(1, 21196664), (2, 10598332), (4, 5299166), (8, 2649583), (443, 47848), (886, 23924), (1772, 11962), (3544, 5981)]