21347982

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20807}}^1$

素因数の和:20837

約数の個数: 32

約数和(自身を含む): 49939200

約数和(自身を除く): 28591218

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20807, 41614, 62421, 124842, 187263, 374526, 395333, 561789, 790666, 1123578, 1185999, 2371998, 3557997, 7115994, 10673991, 21347982]

約数ペア:

[(1, 21347982), (2, 10673991), (3, 7115994), (6, 3557997), (9, 2371998), (18, 1185999), (19, 1123578), (27, 790666), (38, 561789), (54, 395333), (57, 374526), (114, 187263), (171, 124842), (342, 62421), (513, 41614), (1026, 20807)]