19828779

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{3863}}^1$

素因数の和:3954

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 7992021

約数列:

[1, 3, 29, 59, 87, 177, 1711, 3863, 5133, 11589, 112027, 227917, 336081, 683751, 6609593, 19828779]

約数ペア:

[(1, 19828779), (3, 6609593), (29, 683751), (59, 336081), (87, 227917), (177, 112027), (1711, 11589), (3863, 5133)]