20402788

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{42863}}^1$

素因数の和:42891

約数の個数: 24

約数和(自身を含む): 43206912

約数和(自身を除く): 22804124

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 42863, 85726, 171452, 300041, 600082, 728671, 1200164, 1457342, 2914684, 5100697, 10201394, 20402788]

約数ペア:

[(1, 20402788), (2, 10201394), (4, 5100697), (7, 2914684), (14, 1457342), (17, 1200164), (28, 728671), (34, 600082), (68, 300041), (119, 171452), (238, 85726), (476, 42863)]