21713685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{911}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 39923712

約数和(自身を除く): 18210027

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 227, 681, 911, 1135, 1589, 2733, 3405, 4555, 4767, 6377, 7945, 13665, 19131, 23835, 31885, 95655, 206797, 620391, 1033985, 1447579, 3101955, 4342737, 7237895, 21713685]

約数ペア:

[(1, 21713685), (3, 7237895), (5, 4342737), (7, 3101955), (15, 1447579), (21, 1033985), (35, 620391), (105, 206797), (227, 95655), (681, 31885), (911, 23835), (1135, 19131), (1589, 13665), (2733, 7945), (3405, 6377), (4555, 4767)]