18351938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 13166782

約数列:

[1, 2, 11, 22, 31, 62, 71, 142, 341, 379, 682, 758, 781, 1562, 2201, 4169, 4402, 8338, 11749, 23498, 24211, 26909, 48422, 53818, 129239, 258478, 295999, 591998, 834179, 1668358, 9175969, 18351938]

約数ペア:

[(1, 18351938), (2, 9175969), (11, 1668358), (22, 834179), (31, 591998), (62, 295999), (71, 258478), (142, 129239), (341, 53818), (379, 48422), (682, 26909), (758, 24211), (781, 23498), (1562, 11749), (2201, 8338), (4169, 4402)]