17921169

素因数分解:

$3^4\times 7^1\times {\mathrm{31607}}^1$

素因数の和:31626

約数の個数: 20

約数和(自身を含む): 30596544

約数和(自身を除く): 12675375

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 31607, 94821, 221249, 284463, 663747, 853389, 1991241, 2560167, 5973723, 17921169]

約数ペア:

[(1, 17921169), (3, 5973723), (7, 2560167), (9, 1991241), (21, 853389), (27, 663747), (63, 284463), (81, 221249), (189, 94821), (567, 31607)]