21865961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 25127424

約数和(自身を除く): 3261463

約数列:

[1, 13, 17, 163, 221, 607, 2119, 2771, 7891, 10319, 36023, 98941, 134147, 1286233, 1681997, 21865961]

約数ペア:

[(1, 21865961), (13, 1681997), (17, 1286233), (163, 134147), (221, 98941), (607, 36023), (2119, 10319), (2771, 7891)]