21716490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4441}}^1$

素因数の和:4614

約数の個数: 32

約数和(自身を含む): 52451136

約数和(自身を除く): 30734646

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 4441, 4890, 8882, 13323, 22205, 26646, 44410, 66615, 133230, 723883, 1447766, 2171649, 3619415, 4343298, 7238830, 10858245, 21716490]

約数ペア:

[(1, 21716490), (2, 10858245), (3, 7238830), (5, 4343298), (6, 3619415), (10, 2171649), (15, 1447766), (30, 723883), (163, 133230), (326, 66615), (489, 44410), (815, 26646), (978, 22205), (1630, 13323), (2445, 8882), (4441, 4890)]