51891489

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 90316800

約数和(自身を除く): 38425311

約数列:

[1, 3, 9, 13, 19, 27, 31, 39, 57, 93, 117, 171, 247, 251, 279, 351, 403, 513, 589, 741, 753, 837, 1209, 1767, 2223, 2259, 3263, 3627, 4769, 5301, 6669, 6777, 7657, 7781, 9789, 10881, 14307, 15903, 22971, 23343, 29367, 42921, 61997, 68913, 70029, 88101, 101153, 128763, 147839, 185991, 206739, 210087, 303459, 443517, 557973, 910377, 1330551, 1673919, 1921907, 2731131, 3991653, 5765721, 17297163, 51891489]

約数ペア:

[(1, 51891489), (3, 17297163), (9, 5765721), (13, 3991653), (19, 2731131), (27, 1921907), (31, 1673919), (39, 1330551), (57, 910377), (93, 557973), (117, 443517), (171, 303459), (247, 210087), (251, 206739), (279, 185991), (351, 147839), (403, 128763), (513, 101153), (589, 88101), (741, 70029), (753, 68913), (837, 61997), (1209, 42921), (1767, 29367), (2223, 23343), (2259, 22971), (3263, 15903), (3627, 14307), (4769, 10881), (5301, 9789), (6669, 7781), (6777, 7657)]