128661729

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{3499}}^1$

素因数の和:3629

約数の個数: 32

約数和(自身を含む): 209664000

約数和(自身を除く): 81002271

約数列:

[1, 3, 7, 17, 21, 51, 103, 119, 309, 357, 721, 1751, 2163, 3499, 5253, 10497, 12257, 24493, 36771, 59483, 73479, 178449, 360397, 416381, 1081191, 1249143, 2522779, 6126749, 7568337, 18380247, 42887243, 128661729]

約数ペア:

[(1, 128661729), (3, 42887243), (7, 18380247), (17, 7568337), (21, 6126749), (51, 2522779), (103, 1249143), (119, 1081191), (309, 416381), (357, 360397), (721, 178449), (1751, 73479), (2163, 59483), (3499, 36771), (5253, 24493), (10497, 12257)]