645366939

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{22157}}^1$

素因数の和:22259

約数の個数: 32

約数和(自身を含む): 1049402880

約数和(自身を除く): 404035941

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 1387, 1533, 4161, 9709, 22157, 29127, 66471, 155099, 420983, 465297, 1262949, 1617461, 2946881, 4852383, 8840643, 11322227, 30731759, 33966681, 92195277, 215122313, 645366939]

約数ペア:

[(1, 645366939), (3, 215122313), (7, 92195277), (19, 33966681), (21, 30731759), (57, 11322227), (73, 8840643), (133, 4852383), (219, 2946881), (399, 1617461), (511, 1262949), (1387, 465297), (1533, 420983), (4161, 155099), (9709, 66471), (22157, 29127)]