21271777

素因数分解:

${\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23362560

約数和(自身を除く): 2090783

約数列:

[1, 17, 47, 79, 337, 799, 1343, 3713, 5729, 15839, 26623, 63121, 269263, 452591, 1251281, 21271777]

約数ペア:

[(1, 21271777), (17, 1251281), (47, 452591), (79, 269263), (337, 63121), (799, 26623), (1343, 15839), (3713, 5729)]