21897135

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4159}}^1$

素因数の和:4189

約数の個数: 40

約数和(自身を含む): 42282240

約数和(自身を除く): 20385105

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 4159, 5265, 12477, 20795, 37431, 54067, 62385, 112293, 162201, 187155, 270335, 336879, 486603, 561465, 811005, 1459809, 1684395, 2433015, 4379427, 7299045, 21897135]

約数ペア:

[(1, 21897135), (3, 7299045), (5, 4379427), (9, 2433015), (13, 1684395), (15, 1459809), (27, 811005), (39, 561465), (45, 486603), (65, 336879), (81, 270335), (117, 187155), (135, 162201), (195, 112293), (351, 62385), (405, 54067), (585, 37431), (1053, 20795), (1755, 12477), (4159, 5265)]