21365295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3037}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 39664128

約数和(自身を除く): 18298833

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 3037, 7035, 9111, 15185, 21259, 45555, 63777, 106295, 203479, 318885, 610437, 1017395, 1424353, 3052185, 4273059, 7121765, 21365295]

約数ペア:

[(1, 21365295), (3, 7121765), (5, 4273059), (7, 3052185), (15, 1424353), (21, 1017395), (35, 610437), (67, 318885), (105, 203479), (201, 106295), (335, 63777), (469, 45555), (1005, 21259), (1407, 15185), (2345, 9111), (3037, 7035)]