20689383

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1663}}^1$

素因数の和:1719

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 12856857

約数列:

[1, 3, 11, 13, 29, 33, 39, 87, 143, 319, 377, 429, 957, 1131, 1663, 4147, 4989, 12441, 18293, 21619, 48227, 54879, 64857, 144681, 237809, 530497, 626951, 713427, 1591491, 1880853, 6896461, 20689383]

約数ペア:

[(1, 20689383), (3, 6896461), (11, 1880853), (13, 1591491), (29, 713427), (33, 626951), (39, 530497), (87, 237809), (143, 144681), (319, 64857), (377, 54879), (429, 48227), (957, 21619), (1131, 18293), (1663, 12441), (4147, 4989)]