21681624

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8443}}^1$

素因数の和:8559

約数の個数: 32

約数和(自身を含む): 54717120

約数和(自身を除く): 33035496

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8443, 16886, 25329, 33772, 50658, 67544, 101316, 202632, 903401, 1806802, 2710203, 3613604, 5420406, 7227208, 10840812, 21681624]

約数ペア:

[(1, 21681624), (2, 10840812), (3, 7227208), (4, 5420406), (6, 3613604), (8, 2710203), (12, 1806802), (24, 903401), (107, 202632), (214, 101316), (321, 67544), (428, 50658), (642, 33772), (856, 25329), (1284, 16886), (2568, 8443)]