21223871

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 24520704

約数和(自身を除く): 3296833

約数列:

[1, 17, 23, 31, 103, 289, 391, 527, 713, 1751, 2369, 3193, 6647, 8959, 12121, 29767, 40273, 54281, 73439, 206057, 684641, 922777, 1248463, 21223871]

約数ペア:

[(1, 21223871), (17, 1248463), (23, 922777), (31, 684641), (103, 206057), (289, 73439), (391, 54281), (527, 40273), (713, 29767), (1751, 12121), (2369, 8959), (3193, 6647)]