21735

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1$

素因数の和:44

約数の個数: 32

約数和(自身を含む): 46080

約数和(自身を除く): 24345

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 161, 189, 207, 315, 345, 483, 621, 805, 945, 1035, 1449, 2415, 3105, 4347, 7245, 21735]

約数ペア:

[(1, 21735), (3, 7245), (5, 4347), (7, 3105), (9, 2415), (15, 1449), (21, 1035), (23, 945), (27, 805), (35, 621), (45, 483), (63, 345), (69, 315), (105, 207), (115, 189), (135, 161)]