19915406

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{10859}}^1$

素因数の和:10999

約数の個数: 16

約数和(自身を含む): 34404480

約数和(自身を除く): 14489074

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 10859, 21718, 76013, 152026, 1422529, 2845058, 9957703, 19915406]

約数ペア:

[(1, 19915406), (2, 9957703), (7, 2845058), (14, 1422529), (131, 152026), (262, 76013), (917, 21718), (1834, 10859)]