21412239

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{541}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 29137920

約数和(自身を除く): 7725681

約数列:

[1, 3, 79, 167, 237, 501, 541, 1623, 13193, 39579, 42739, 90347, 128217, 271041, 7137413, 21412239]

約数ペア:

[(1, 21412239), (3, 7137413), (79, 271041), (167, 128217), (237, 90347), (501, 42739), (541, 39579), (1623, 13193)]