21668988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1181}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 55601280

約数和(自身を除く): 33932292

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 139, 278, 417, 556, 834, 1181, 1529, 1668, 2362, 3058, 3543, 4587, 4724, 6116, 7086, 9174, 12991, 14172, 18348, 25982, 38973, 51964, 77946, 155892, 164159, 328318, 492477, 656636, 984954, 1805749, 1969908, 3611498, 5417247, 7222996, 10834494, 21668988]

約数ペア:

[(1, 21668988), (2, 10834494), (3, 7222996), (4, 5417247), (6, 3611498), (11, 1969908), (12, 1805749), (22, 984954), (33, 656636), (44, 492477), (66, 328318), (132, 164159), (139, 155892), (278, 77946), (417, 51964), (556, 38973), (834, 25982), (1181, 18348), (1529, 14172), (1668, 12991), (2362, 9174), (3058, 7086), (3543, 6116), (4587, 4724)]