16985553

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 25536000

約数和(自身を除く): 8550447

約数列:

[1, 3, 13, 37, 39, 79, 111, 149, 237, 447, 481, 1027, 1443, 1937, 2923, 3081, 5513, 5811, 8769, 11771, 16539, 35313, 37999, 71669, 113997, 153023, 215007, 435527, 459069, 1306581, 5661851, 16985553]

約数ペア:

[(1, 16985553), (3, 5661851), (13, 1306581), (37, 459069), (39, 435527), (79, 215007), (111, 153023), (149, 113997), (237, 71669), (447, 37999), (481, 35313), (1027, 16539), (1443, 11771), (1937, 8769), (2923, 5811), (3081, 5513)]