20658891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1487}}^1$

素因数の和:1922

約数の個数: 16

約数和(自身を含む): 30140928

約数和(自身を除く): 9482037

約数列:

[1, 3, 11, 33, 421, 1263, 1487, 4461, 4631, 13893, 16357, 49071, 626027, 1878081, 6886297, 20658891]

約数ペア:

[(1, 20658891), (3, 6886297), (11, 1878081), (33, 626027), (421, 49071), (1263, 16357), (1487, 13893), (4461, 4631)]