20144761

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 26421248

約数和(自身を除く): 6276487

約数列:

[1, 7, 13, 31, 37, 91, 193, 217, 259, 403, 481, 1147, 1351, 2509, 2821, 3367, 5983, 7141, 8029, 14911, 17563, 41881, 49987, 77779, 92833, 104377, 221371, 544453, 649831, 1549597, 2877823, 20144761]

約数ペア:

[(1, 20144761), (7, 2877823), (13, 1549597), (31, 649831), (37, 544453), (91, 221371), (193, 104377), (217, 92833), (259, 77779), (403, 49987), (481, 41881), (1147, 17563), (1351, 14911), (2509, 8029), (2821, 7141), (3367, 5983)]