19962639

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{15731}}^1$

素因数の和:15787

約数の個数: 16

約数和(自身を含む): 30205440

約数和(自身を除く): 10242801

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 15731, 47193, 141579, 424737, 739357, 2218071, 6654213, 19962639]

約数ペア:

[(1, 19962639), (3, 6654213), (9, 2218071), (27, 739357), (47, 424737), (141, 141579), (423, 47193), (1269, 15731)]