21289456

素因数分解:

$2^4\times {\mathrm{859}}^1\times {\mathrm{1549}}^1$

素因数の和:2416

約数の個数: 20

約数和(自身を含む): 41323000

約数和(自身を除く): 20033544

約数列:

[1, 2, 4, 8, 16, 859, 1549, 1718, 3098, 3436, 6196, 6872, 12392, 13744, 24784, 1330591, 2661182, 5322364, 10644728, 21289456]

約数ペア:

[(1, 21289456), (2, 10644728), (4, 5322364), (8, 2661182), (16, 1330591), (859, 24784), (1549, 13744), (1718, 12392), (3098, 6872), (3436, 6196)]