21141591

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1613}}^1$

素因数の和:1890

約数の個数: 16

約数和(自身を含む): 29981664

約数和(自身を除く): 8840073

約数列:

[1, 3, 17, 51, 257, 771, 1613, 4369, 4839, 13107, 27421, 82263, 414541, 1243623, 7047197, 21141591]

約数ペア:

[(1, 21141591), (3, 7047197), (17, 1243623), (51, 414541), (257, 82263), (771, 27421), (1613, 13107), (4369, 4839)]