20981048

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7691}}^1$

素因数の和:7739

約数の個数: 32

約数和(自身を含む): 44305920

約数和(自身を除く): 23324872

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7691, 15382, 30764, 61528, 84601, 169202, 238421, 338404, 476842, 676808, 953684, 1907368, 2622631, 5245262, 10490524, 20981048]

約数ペア:

[(1, 20981048), (2, 10490524), (4, 5245262), (8, 2622631), (11, 1907368), (22, 953684), (31, 676808), (44, 476842), (62, 338404), (88, 238421), (124, 169202), (248, 84601), (341, 61528), (682, 30764), (1364, 15382), (2728, 7691)]