21074271

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14249}}^1$

素因数の和:14298

約数の個数: 16

約数和(自身を含む): 30780000

約数和(自身を除く): 9705729

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14249, 42747, 242233, 413221, 726699, 1239663, 7024757, 21074271]

約数ペア:

[(1, 21074271), (3, 7024757), (17, 1239663), (29, 726699), (51, 413221), (87, 242233), (493, 42747), (1479, 14249)]