19935069

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 33377280

約数和(自身を除く): 13442211

約数列:

[1, 3, 7, 11, 21, 33, 77, 211, 231, 409, 633, 1227, 1477, 2321, 2863, 4431, 4499, 6963, 8589, 13497, 16247, 31493, 48741, 86299, 94479, 258897, 604093, 949289, 1812279, 2847867, 6645023, 19935069]

約数ペア:

[(1, 19935069), (3, 6645023), (7, 2847867), (11, 1812279), (21, 949289), (33, 604093), (77, 258897), (211, 94479), (231, 86299), (409, 48741), (633, 31493), (1227, 16247), (1477, 13497), (2321, 8589), (2863, 6963), (4431, 4499)]