21441735

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 43490304

約数和(自身を除く): 22048569

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1505, 1583, 1935, 2709, 4515, 4749, 7915, 11081, 13545, 14247, 23745, 33243, 55405, 68069, 71235, 99729, 166215, 204207, 340345, 476483, 498645, 612621, 1021035, 1429449, 2382415, 3063105, 4288347, 7147245, 21441735]

約数ペア:

[(1, 21441735), (3, 7147245), (5, 4288347), (7, 3063105), (9, 2382415), (15, 1429449), (21, 1021035), (35, 612621), (43, 498645), (45, 476483), (63, 340345), (105, 204207), (129, 166215), (215, 99729), (301, 71235), (315, 68069), (387, 55405), (645, 33243), (903, 23745), (1505, 14247), (1583, 13545), (1935, 11081), (2709, 7915), (4515, 4749)]