21439657

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 23915520

約数和(自身を除く): 2475863

約数列:

[1, 19, 23, 71, 437, 691, 1349, 1633, 13129, 15893, 31027, 49061, 301967, 932159, 1128403, 21439657]

約数ペア:

[(1, 21439657), (19, 1128403), (23, 932159), (71, 301967), (437, 49061), (691, 31027), (1349, 15893), (1633, 13129)]