291270231

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{631}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 511100928

約数和(自身を除く): 219830697

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 431, 631, 1071, 1293, 1893, 3017, 3879, 4417, 5679, 7327, 9051, 10727, 13251, 21981, 27153, 32181, 39753, 51289, 65943, 75089, 96543, 153867, 225267, 271961, 461601, 675801, 815883, 1903727, 2447649, 4623337, 5711181, 13870011, 17133543, 32363359, 41610033, 97090077, 291270231]

約数ペア:

[(1, 291270231), (3, 97090077), (7, 41610033), (9, 32363359), (17, 17133543), (21, 13870011), (51, 5711181), (63, 4623337), (119, 2447649), (153, 1903727), (357, 815883), (431, 675801), (631, 461601), (1071, 271961), (1293, 225267), (1893, 153867), (3017, 96543), (3879, 75089), (4417, 65943), (5679, 51289), (7327, 39753), (9051, 32181), (10727, 27153), (13251, 21981)]