21247692

素因数分解:

$2^2\times 3^1\times {\mathrm{313}}^1\times {\mathrm{5657}}^1$

素因数の和:5977

約数の個数: 24

約数和(自身を含む): 49745136

約数和(自身を除く): 28497444

約数列:

[1, 2, 3, 4, 6, 12, 313, 626, 939, 1252, 1878, 3756, 5657, 11314, 16971, 22628, 33942, 67884, 1770641, 3541282, 5311923, 7082564, 10623846, 21247692]

約数ペア:

[(1, 21247692), (2, 10623846), (3, 7082564), (4, 5311923), (6, 3541282), (12, 1770641), (313, 67884), (626, 33942), (939, 22628), (1252, 16971), (1878, 11314), (3756, 5657)]