18743271

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{433}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 25665024

約数和(自身を除く): 6921753

約数列:

[1, 3, 47, 141, 307, 433, 921, 1299, 14429, 20351, 43287, 61053, 132931, 398793, 6247757, 18743271]

約数ペア:

[(1, 18743271), (3, 6247757), (47, 398793), (141, 132931), (307, 61053), (433, 43287), (921, 20351), (1299, 14429)]