18969603

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{863}}^1$

素因数の和:1314

約数の個数: 16

約数和(自身を含む): 26873856

約数和(自身を除く): 7904253

約数列:

[1, 3, 17, 51, 431, 863, 1293, 2589, 7327, 14671, 21981, 44013, 371953, 1115859, 6323201, 18969603]

約数ペア:

[(1, 18969603), (3, 6323201), (17, 1115859), (51, 371953), (431, 44013), (863, 21981), (1293, 14671), (2589, 7327)]