20653347

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 33417216

約数和(自身を除く): 12763869

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 341, 403, 429, 1023, 1209, 1553, 4433, 4659, 13299, 17083, 20189, 48143, 51249, 60567, 144429, 222079, 529573, 625859, 666237, 1588719, 1877577, 6884449, 20653347]

約数ペア:

[(1, 20653347), (3, 6884449), (11, 1877577), (13, 1588719), (31, 666237), (33, 625859), (39, 529573), (93, 222079), (143, 144429), (341, 60567), (403, 51249), (429, 48143), (1023, 20189), (1209, 17083), (1553, 13299), (4433, 4659)]