18881395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3677}}^1$

素因数の和:3774

約数の個数: 16

約数和(自身を含む): 24716160

約数和(自身を除く): 5834765

約数列:

[1, 5, 13, 65, 79, 395, 1027, 3677, 5135, 18385, 47801, 239005, 290483, 1452415, 3776279, 18881395]

約数ペア:

[(1, 18881395), (5, 3776279), (13, 1452415), (65, 290483), (79, 239005), (395, 47801), (1027, 18385), (3677, 5135)]