20941683

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 33384960

約数和(自身を除く): 12443277

約数列:

[1, 3, 7, 21, 29, 87, 137, 203, 251, 411, 609, 753, 959, 1757, 2877, 3973, 5271, 7279, 11919, 21837, 27811, 34387, 50953, 83433, 103161, 152859, 240709, 722127, 997223, 2991669, 6980561, 20941683]

約数ペア:

[(1, 20941683), (3, 6980561), (7, 2991669), (21, 997223), (29, 722127), (87, 240709), (137, 152859), (203, 103161), (251, 83433), (411, 50953), (609, 34387), (753, 27811), (959, 21837), (1757, 11919), (2877, 7279), (3973, 5271)]