19946493

素因数分解:

$3^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:423

約数の個数: 40

約数和(自身を含む): 34445312

約数和(自身を除く): 14498819

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 127, 189, 277, 381, 567, 831, 889, 1143, 1939, 2493, 2667, 3429, 5817, 7479, 8001, 10287, 17451, 22437, 24003, 35179, 52353, 72009, 105537, 157059, 246253, 316611, 738759, 949833, 2216277, 2849499, 6648831, 19946493]

約数ペア:

[(1, 19946493), (3, 6648831), (7, 2849499), (9, 2216277), (21, 949833), (27, 738759), (63, 316611), (81, 246253), (127, 157059), (189, 105537), (277, 72009), (381, 52353), (567, 35179), (831, 24003), (889, 22437), (1143, 17451), (1939, 10287), (2493, 8001), (2667, 7479), (3429, 5817)]