19901739

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2017}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 32546304

約数和(自身を除く): 12644565

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 2017, 3289, 6051, 9867, 22187, 26221, 46391, 66561, 78663, 139173, 288431, 510301, 603083, 865293, 1530903, 1809249, 6633913, 19901739]

約数ペア:

[(1, 19901739), (3, 6633913), (11, 1809249), (13, 1530903), (23, 865293), (33, 603083), (39, 510301), (69, 288431), (143, 139173), (253, 78663), (299, 66561), (429, 46391), (759, 26221), (897, 22187), (2017, 9867), (3289, 6051)]