21321228

素因数分解:

$2^2\times 3^1\times {\mathrm{157}}^1\times {\mathrm{11317}}^1$

素因数の和:11481

約数の個数: 24

約数和(自身を含む): 50070832

約数和(自身を除く): 28749604

約数列:

[1, 2, 3, 4, 6, 12, 157, 314, 471, 628, 942, 1884, 11317, 22634, 33951, 45268, 67902, 135804, 1776769, 3553538, 5330307, 7107076, 10660614, 21321228]

約数ペア:

[(1, 21321228), (2, 10660614), (3, 7107076), (4, 5330307), (6, 3553538), (12, 1776769), (157, 135804), (314, 67902), (471, 45268), (628, 33951), (942, 22634), (1884, 11317)]