20800906

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 36938880

約数和(自身を除く): 16137974

約数列:

[1, 2, 7, 14, 43, 86, 109, 218, 301, 317, 602, 634, 763, 1526, 2219, 4438, 4687, 9374, 13631, 27262, 32809, 34553, 65618, 69106, 95417, 190834, 241871, 483742, 1485779, 2971558, 10400453, 20800906]

約数ペア:

[(1, 20800906), (2, 10400453), (7, 2971558), (14, 1485779), (43, 483742), (86, 241871), (109, 190834), (218, 95417), (301, 69106), (317, 65618), (602, 34553), (634, 32809), (763, 27262), (1526, 13631), (2219, 9374), (4438, 4687)]