67817981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 90574848

約数和(自身を除く): 22756867

約数列:

[1, 7, 11, 17, 77, 103, 119, 187, 503, 721, 1133, 1309, 1751, 3521, 5533, 7931, 8551, 12257, 19261, 38731, 51809, 59857, 94061, 134827, 362663, 569899, 658427, 880753, 3989293, 6165271, 9688283, 67817981]

約数ペア:

[(1, 67817981), (7, 9688283), (11, 6165271), (17, 3989293), (77, 880753), (103, 658427), (119, 569899), (187, 362663), (503, 134827), (721, 94061), (1133, 59857), (1309, 51809), (1751, 38731), (3521, 19261), (5533, 12257), (7931, 8551)]