20520731

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4517}}^1$

素因数の和:4594

約数の個数: 16

約数和(自身を含む): 26023680

約数和(自身を除く): 5502949

約数列:

[1, 7, 11, 59, 77, 413, 649, 4517, 4543, 31619, 49687, 266503, 347809, 1865521, 2931533, 20520731]

約数ペア:

[(1, 20520731), (7, 2931533), (11, 1865521), (59, 347809), (77, 266503), (413, 49687), (649, 31619), (4517, 4543)]