19899410

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9431}}^1$

素因数の和:9649

約数の個数: 16

約数和(自身を含む): 35992512

約数和(自身を除く): 16093102

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 9431, 18862, 47155, 94310, 1989941, 3979882, 9949705, 19899410]

約数ペア:

[(1, 19899410), (2, 9949705), (5, 3979882), (10, 1989941), (211, 94310), (422, 47155), (1055, 18862), (2110, 9431)]