21244047

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13697}}^1$

素因数の和:13758

約数の個数: 16

約数和(自身を含む): 31560192

約数和(自身を除く): 10316145

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13697, 41091, 150667, 452001, 643759, 1931277, 7081349, 21244047]

約数ペア:

[(1, 21244047), (3, 7081349), (11, 1931277), (33, 643759), (47, 452001), (141, 150667), (517, 41091), (1551, 13697)]