21138272

素因数分解:

$2^5\times {\mathrm{769}}^1\times {\mathrm{859}}^1$

素因数の和:1638

約数の個数: 24

約数和(自身を含む): 41718600

約数和(自身を除く): 20580328

約数列:

[1, 2, 4, 8, 16, 32, 769, 859, 1538, 1718, 3076, 3436, 6152, 6872, 12304, 13744, 24608, 27488, 660571, 1321142, 2642284, 5284568, 10569136, 21138272]

約数ペア:

[(1, 21138272), (2, 10569136), (4, 5284568), (8, 2642284), (16, 1321142), (32, 660571), (769, 27488), (859, 24608), (1538, 13744), (1718, 12304), (3076, 6872), (3436, 6152)]