18704763

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2999}}^1$

素因数の和:3029

約数の個数: 40

約数和(自身を含む): 34848000

約数和(自身を除く): 16143237

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 2999, 6237, 8997, 20993, 26991, 32989, 62979, 80973, 98967, 188937, 230923, 242919, 296901, 566811, 692769, 890703, 1700433, 2078307, 2672109, 6234921, 18704763]

約数ペア:

[(1, 18704763), (3, 6234921), (7, 2672109), (9, 2078307), (11, 1700433), (21, 890703), (27, 692769), (33, 566811), (63, 296901), (77, 242919), (81, 230923), (99, 188937), (189, 98967), (231, 80973), (297, 62979), (567, 32989), (693, 26991), (891, 20993), (2079, 8997), (2999, 6237)]