21322191

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{821}}^1$

素因数の和:1622

約数の個数: 16

約数和(自身を含む): 31091328

約数和(自身を除く): 9769137

約数列:

[1, 3, 11, 33, 787, 821, 2361, 2463, 8657, 9031, 25971, 27093, 646127, 1938381, 7107397, 21322191]

約数ペア:

[(1, 21322191), (3, 7107397), (11, 1938381), (33, 646127), (787, 27093), (821, 25971), (2361, 9031), (2463, 8657)]