19809434

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{1129}}^1$

素因数の和:1445

約数の個数: 16

約数和(自身を含む): 30808320

約数和(自身を除く): 10998886

約数列:

[1, 2, 31, 62, 283, 566, 1129, 2258, 8773, 17546, 34999, 69998, 319507, 639014, 9904717, 19809434]

約数ペア:

[(1, 19809434), (2, 9904717), (31, 639014), (62, 319507), (283, 69998), (566, 34999), (1129, 17546), (2258, 8773)]