20884364

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1559}}^1$

素因数の和:1777

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18034516

約数列:

[1, 2, 4, 17, 34, 68, 197, 394, 788, 1559, 3118, 3349, 6236, 6698, 13396, 26503, 53006, 106012, 307123, 614246, 1228492, 5221091, 10442182, 20884364]

約数ペア:

[(1, 20884364), (2, 10442182), (4, 5221091), (17, 1228492), (34, 614246), (68, 307123), (197, 106012), (394, 53006), (788, 26503), (1559, 13396), (3118, 6698), (3349, 6236)]