20420876

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{42901}}^1$

素因数の和:42929

約数の個数: 24

約数和(自身を含む): 43245216

約数和(自身を除く): 22824340

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 42901, 85802, 171604, 300307, 600614, 729317, 1201228, 1458634, 2917268, 5105219, 10210438, 20420876]

約数ペア:

[(1, 20420876), (2, 10210438), (4, 5105219), (7, 2917268), (14, 1458634), (17, 1201228), (28, 729317), (34, 600614), (68, 300307), (119, 171604), (238, 85802), (476, 42901)]