16905021

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47353}}^1$

素因数の和:47380

約数の個数: 16

約数和(自身を含む): 27275904

約数和(自身を除く): 10370883

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 47353, 142059, 331471, 805001, 994413, 2415003, 5635007, 16905021]

約数ペア:

[(1, 16905021), (3, 5635007), (7, 2415003), (17, 994413), (21, 805001), (51, 331471), (119, 142059), (357, 47353)]