7820289

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 12130560

約数和(自身を除く): 4310271

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 647, 711, 1343, 1941, 4029, 5823, 10999, 12087, 32997, 51113, 98991, 153339, 460017, 868921, 2606763, 7820289]

約数ペア:

[(1, 7820289), (3, 2606763), (9, 868921), (17, 460017), (51, 153339), (79, 98991), (153, 51113), (237, 32997), (647, 12087), (711, 10999), (1343, 5823), (1941, 4029)]