17940351

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 30965760

約数和(自身を除く): 13025409

約数列:

[1, 3, 11, 13, 19, 31, 33, 39, 57, 71, 93, 143, 209, 213, 247, 341, 403, 429, 589, 627, 741, 781, 923, 1023, 1209, 1349, 1767, 2201, 2343, 2717, 2769, 4047, 4433, 6479, 6603, 7657, 8151, 10153, 13299, 14839, 17537, 19437, 22971, 24211, 28613, 30459, 41819, 44517, 52611, 72633, 84227, 85839, 125457, 192907, 252681, 314743, 460009, 543647, 578721, 944229, 1380027, 1630941, 5980117, 17940351]

約数ペア:

[(1, 17940351), (3, 5980117), (11, 1630941), (13, 1380027), (19, 944229), (31, 578721), (33, 543647), (39, 460009), (57, 314743), (71, 252681), (93, 192907), (143, 125457), (209, 85839), (213, 84227), (247, 72633), (341, 52611), (403, 44517), (429, 41819), (589, 30459), (627, 28613), (741, 24211), (781, 22971), (923, 19437), (1023, 17537), (1209, 14839), (1349, 13299), (1767, 10153), (2201, 8151), (2343, 7657), (2717, 6603), (2769, 6479), (4047, 4433)]