21877845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1979}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 16898475

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 1979, 2211, 3685, 5937, 9895, 11055, 21769, 29685, 65307, 108845, 132593, 326535, 397779, 662965, 1458523, 1988895, 4375569, 7292615, 21877845]

約数ペア:

[(1, 21877845), (3, 7292615), (5, 4375569), (11, 1988895), (15, 1458523), (33, 662965), (55, 397779), (67, 326535), (165, 132593), (201, 108845), (335, 65307), (737, 29685), (1005, 21769), (1979, 11055), (2211, 9895), (3685, 5937)]