1991641678

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{54059}}^1$

素因数の和:54196

約数の個数: 24

約数和(自身を含む): 3264683400

約数和(自身を除く): 1273041722

約数列:

[1, 2, 13, 26, 109, 169, 218, 338, 1417, 2834, 18421, 36842, 54059, 108118, 702767, 1405534, 5892431, 9135971, 11784862, 18271942, 76601603, 153203206, 995820839, 1991641678]

約数ペア:

[(1, 1991641678), (2, 995820839), (13, 153203206), (26, 76601603), (109, 18271942), (169, 11784862), (218, 9135971), (338, 5892431), (1417, 1405534), (2834, 702767), (18421, 108118), (36842, 54059)]