19405721

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1672

約数の個数: 16

約数和(自身を含む): 22146048

約数和(自身を除く): 2740327

約数列:

[1, 17, 23, 31, 391, 527, 713, 1601, 12121, 27217, 36823, 49631, 625991, 843727, 1141513, 19405721]

約数ペア:

[(1, 19405721), (17, 1141513), (23, 843727), (31, 625991), (391, 49631), (527, 36823), (713, 27217), (1601, 12121)]