21221049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1741}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 30101760

約数和(自身を除く): 8880711

約数列:

[1, 3, 17, 51, 239, 717, 1741, 4063, 5223, 12189, 29597, 88791, 416099, 1248297, 7073683, 21221049]

約数ペア:

[(1, 21221049), (3, 7073683), (17, 1248297), (51, 416099), (239, 88791), (717, 29597), (1741, 12189), (4063, 5223)]