30778461

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2857}}^1$

素因数の和:2895

約数の個数: 40

約数和(自身を含む): 55330880

約数和(自身を除く): 24552419

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2857, 3591, 8571, 10773, 19999, 25713, 54283, 59997, 77139, 162849, 179991, 231417, 379981, 488547, 539973, 1139943, 1465641, 1619919, 3419829, 4396923, 10259487, 30778461]

約数ペア:

[(1, 30778461), (3, 10259487), (7, 4396923), (9, 3419829), (19, 1619919), (21, 1465641), (27, 1139943), (57, 539973), (63, 488547), (81, 379981), (133, 231417), (171, 179991), (189, 162849), (399, 77139), (513, 59997), (567, 54283), (1197, 25713), (1539, 19999), (2857, 10773), (3591, 8571)]