20391364

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{42839}}^1$

素因数の和:42867

約数の個数: 24

約数和(自身を含む): 43182720

約数和(自身を除く): 22791356

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 42839, 85678, 171356, 299873, 599746, 728263, 1199492, 1456526, 2913052, 5097841, 10195682, 20391364]

約数ペア:

[(1, 20391364), (2, 10195682), (4, 5097841), (7, 2913052), (14, 1456526), (17, 1199492), (28, 728263), (34, 599746), (68, 299873), (119, 171356), (238, 85678), (476, 42839)]