21708654

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{328919}}^1$

素因数の和:328935

約数の個数: 16

約数和(自身を含む): 47364480

約数和(自身を除く): 25655826

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 328919, 657838, 986757, 1973514, 3618109, 7236218, 10854327, 21708654]

約数ペア:

[(1, 21708654), (2, 10854327), (3, 7236218), (6, 3618109), (11, 1973514), (22, 986757), (33, 657838), (66, 328919)]