21008859

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{4027}}^1$

素因数の和:4114

約数の個数: 16

約数和(自身を含む): 29388288

約数和(自身を除く): 8379429

約数列:

[1, 3, 37, 47, 111, 141, 1739, 4027, 5217, 12081, 148999, 189269, 446997, 567807, 7002953, 21008859]

約数ペア:

[(1, 21008859), (3, 7002953), (37, 567807), (47, 446997), (111, 189269), (141, 148999), (1739, 12081), (4027, 5217)]