21190490

素因数分解:

$2^1\times 5^1\times {\mathrm{929}}^1\times {\mathrm{2281}}^1$

素因数の和:3217

約数の個数: 16

約数和(自身を含む): 38200680

約数和(自身を除く): 17010190

約数列:

[1, 2, 5, 10, 929, 1858, 2281, 4562, 4645, 9290, 11405, 22810, 2119049, 4238098, 10595245, 21190490]

約数ペア:

[(1, 21190490), (2, 10595245), (5, 4238098), (10, 2119049), (929, 22810), (1858, 11405), (2281, 9290), (4562, 4645)]