20817741

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58313}}^1$

素因数の和:58340

約数の個数: 16

約数和(自身を含む): 33588864

約数和(自身を除く): 12771123

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58313, 174939, 408191, 991321, 1224573, 2973963, 6939247, 20817741]

約数ペア:

[(1, 20817741), (3, 6939247), (7, 2973963), (17, 1224573), (21, 991321), (51, 408191), (119, 174939), (357, 58313)]