20950699

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 27574272

約数和(自身を除く): 6623573

約数列:

[1, 7, 11, 31, 67, 77, 131, 217, 341, 469, 737, 917, 1441, 2077, 2387, 4061, 5159, 8777, 10087, 14539, 22847, 28427, 44671, 61439, 96547, 159929, 272087, 312697, 675829, 1904609, 2992957, 20950699]

約数ペア:

[(1, 20950699), (7, 2992957), (11, 1904609), (31, 675829), (67, 312697), (77, 272087), (131, 159929), (217, 96547), (341, 61439), (469, 44671), (737, 28427), (917, 22847), (1441, 14539), (2077, 10087), (2387, 8777), (4061, 5159)]