19430990

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9209}}^1$

素因数の和:9427

約数の個数: 16

約数和(自身を含む): 35145360

約数和(自身を除く): 15714370

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 9209, 18418, 46045, 92090, 1943099, 3886198, 9715495, 19430990]

約数ペア:

[(1, 19430990), (2, 9715495), (5, 3886198), (10, 1943099), (211, 92090), (422, 46045), (1055, 18418), (2110, 9209)]