71721793

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 90260352

約数和(自身を除く): 18538559

約数列:

[1, 11, 13, 17, 143, 163, 181, 187, 221, 1793, 1991, 2119, 2353, 2431, 2771, 3077, 23309, 25883, 29503, 30481, 33847, 36023, 40001, 324533, 383539, 396253, 440011, 501551, 4218929, 5517061, 6520163, 71721793]

約数ペア:

[(1, 71721793), (11, 6520163), (13, 5517061), (17, 4218929), (143, 501551), (163, 440011), (181, 396253), (187, 383539), (221, 324533), (1793, 40001), (1991, 36023), (2119, 33847), (2353, 30481), (2431, 29503), (2771, 25883), (3077, 23309)]