21517496

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2687}}^1$

素因数の和:2724

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 32672584

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2687, 4004, 5374, 8008, 10748, 18809, 21496, 29557, 34931, 37618, 59114, 69862, 75236, 118228, 139724, 150472, 206899, 236456, 244517, 279448, 384241, 413798, 489034, 768482, 827596, 978068, 1536964, 1655192, 1956136, 2689687, 3073928, 5379374, 10758748, 21517496]

約数ペア:

[(1, 21517496), (2, 10758748), (4, 5379374), (7, 3073928), (8, 2689687), (11, 1956136), (13, 1655192), (14, 1536964), (22, 978068), (26, 827596), (28, 768482), (44, 489034), (52, 413798), (56, 384241), (77, 279448), (88, 244517), (91, 236456), (104, 206899), (143, 150472), (154, 139724), (182, 118228), (286, 75236), (308, 69862), (364, 59114), (572, 37618), (616, 34931), (728, 29557), (1001, 21496), (1144, 18809), (2002, 10748), (2687, 8008), (4004, 5374)]