215172009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{431}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 356638464

約数和(自身を除く): 141466455

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 251, 431, 663, 753, 1293, 1989, 2259, 3263, 3879, 4267, 5603, 7327, 9789, 12801, 16809, 21981, 29367, 38403, 50427, 55471, 65943, 95251, 108181, 166413, 285753, 324543, 499239, 857259, 973629, 1406353, 1839077, 4219059, 5517231, 12657177, 16551693, 23908001, 71724003, 215172009]

約数ペア:

[(1, 215172009), (3, 71724003), (9, 23908001), (13, 16551693), (17, 12657177), (39, 5517231), (51, 4219059), (117, 1839077), (153, 1406353), (221, 973629), (251, 857259), (431, 499239), (663, 324543), (753, 285753), (1293, 166413), (1989, 108181), (2259, 95251), (3263, 65943), (3879, 55471), (4267, 50427), (5603, 38403), (7327, 29367), (9789, 21981), (12801, 16809)]