21189579

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9067}}^1$

素因数の和:9130

約数の個数: 16

約数和(自身を含む): 30468480

約数和(自身を除く): 9278901

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9067, 27201, 172273, 371747, 516819, 1115241, 7063193, 21189579]

約数ペア:

[(1, 21189579), (3, 7063193), (19, 1115241), (41, 516819), (57, 371747), (123, 172273), (779, 27201), (2337, 9067)]