209064812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{77893}}^1$

素因数の和:77969

約数の個数: 24

約数和(自身を含む): 405671952

約数和(自身を除く): 196607140

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 77893, 155786, 311572, 856823, 1713646, 3427292, 4751473, 9502946, 19005892, 52266203, 104532406, 209064812]

約数ペア:

[(1, 209064812), (2, 104532406), (4, 52266203), (11, 19005892), (22, 9502946), (44, 4751473), (61, 3427292), (122, 1713646), (244, 856823), (671, 311572), (1342, 155786), (2684, 77893)]