21573160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77047}}^1$

素因数の和:77065

約数の個数: 32

約数和(自身を含む): 55474560

約数和(自身を除く): 33901400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77047, 154094, 308188, 385235, 539329, 616376, 770470, 1078658, 1540940, 2157316, 2696645, 3081880, 4314632, 5393290, 10786580, 21573160]

約数ペア:

[(1, 21573160), (2, 10786580), (4, 5393290), (5, 4314632), (7, 3081880), (8, 2696645), (10, 2157316), (14, 1540940), (20, 1078658), (28, 770470), (35, 616376), (40, 539329), (56, 385235), (70, 308188), (140, 154094), (280, 77047)]