19689470

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22123}}^1$

素因数の和:22219

約数の個数: 16

約数和(自身を含む): 35840880

約数和(自身を除く): 16151410

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22123, 44246, 110615, 221230, 1968947, 3937894, 9844735, 19689470]

約数ペア:

[(1, 19689470), (2, 9844735), (5, 3937894), (10, 1968947), (89, 221230), (178, 110615), (445, 44246), (890, 22123)]