77218981

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 98910720

約数和(自身を除く): 21691739

約数列:

[1, 7, 17, 23, 89, 119, 161, 317, 391, 623, 1513, 2047, 2219, 2737, 5389, 7291, 10591, 14329, 28213, 34799, 37723, 51037, 123947, 197491, 243593, 479621, 648899, 867629, 3357347, 4542293, 11031283, 77218981]

約数ペア:

[(1, 77218981), (7, 11031283), (17, 4542293), (23, 3357347), (89, 867629), (119, 648899), (161, 479621), (317, 243593), (391, 197491), (623, 123947), (1513, 51037), (2047, 37723), (2219, 34799), (2737, 28213), (5389, 14329), (7291, 10591)]