21026535

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82457}}^1$

素因数の和:82482

約数の個数: 16

約数和(自身を含む): 35621856

約数和(自身を除く): 14595321

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82457, 247371, 412285, 1236855, 1401769, 4205307, 7008845, 21026535]

約数ペア:

[(1, 21026535), (3, 7008845), (5, 4205307), (15, 1401769), (17, 1236855), (51, 412285), (85, 247371), (255, 82457)]