20216145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79279}}^1$

素因数の和:79304

約数の個数: 16

約数和(自身を含む): 34248960

約数和(自身を除く): 14032815

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 79279, 237837, 396395, 1189185, 1347743, 4043229, 6738715, 20216145]

約数ペア:

[(1, 20216145), (3, 6738715), (5, 4043229), (15, 1347743), (17, 1189185), (51, 396395), (85, 237837), (255, 79279)]