20077551

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{829}}^1$

素因数の和:877

約数の個数: 40

約数和(自身を含む): 33744480

約数和(自身を除く): 13666929

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 829, 897, 1053, 1863, 2487, 2691, 7461, 8073, 10777, 19067, 22383, 24219, 32331, 57201, 67149, 96993, 171603, 247871, 290979, 514809, 743613, 872937, 1544427, 2230839, 6692517, 20077551]

約数ペア:

[(1, 20077551), (3, 6692517), (9, 2230839), (13, 1544427), (23, 872937), (27, 743613), (39, 514809), (69, 290979), (81, 247871), (117, 171603), (207, 96993), (299, 67149), (351, 57201), (621, 32331), (829, 24219), (897, 22383), (1053, 19067), (1863, 10777), (2487, 8073), (2691, 7461)]