21137259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1699}}^1$

素因数の和:1755

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13134741

約数列:

[1, 3, 11, 13, 29, 33, 39, 87, 143, 319, 377, 429, 957, 1131, 1699, 4147, 5097, 12441, 18689, 22087, 49271, 56067, 66261, 147813, 242957, 541981, 640523, 728871, 1625943, 1921569, 7045753, 21137259]

約数ペア:

[(1, 21137259), (3, 7045753), (11, 1921569), (13, 1625943), (29, 728871), (33, 640523), (39, 541981), (87, 242957), (143, 147813), (319, 66261), (377, 56067), (429, 49271), (957, 22087), (1131, 18689), (1699, 12441), (4147, 5097)]