21701055

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 36301248

約数和(自身を除く): 14600193

約数列:

[1, 3, 5, 15, 37, 61, 111, 183, 185, 305, 555, 641, 915, 1923, 2257, 3205, 6771, 9615, 11285, 23717, 33855, 39101, 71151, 117303, 118585, 195505, 355755, 586515, 1446737, 4340211, 7233685, 21701055]

約数ペア:

[(1, 21701055), (3, 7233685), (5, 4340211), (15, 1446737), (37, 586515), (61, 355755), (111, 195505), (183, 118585), (185, 117303), (305, 71151), (555, 39101), (641, 33855), (915, 23717), (1923, 11285), (2257, 9615), (3205, 6771)]