21718299

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1657}}^1$

素因数の和:1934

約数の個数: 16

約数和(自身を含む): 30799008

約数和(自身を除く): 9080709

約数列:

[1, 3, 17, 51, 257, 771, 1657, 4369, 4971, 13107, 28169, 84507, 425849, 1277547, 7239433, 21718299]

約数ペア:

[(1, 21718299), (3, 7239433), (17, 1277547), (51, 425849), (257, 84507), (771, 28169), (1657, 13107), (4369, 4971)]