19872171

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1109}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 31515120

約数和(自身を除く): 11642949

約数列:

[1, 3, 9, 11, 33, 99, 181, 543, 1109, 1629, 1991, 3327, 5973, 9981, 12199, 17919, 36597, 109791, 200729, 602187, 1806561, 2208019, 6624057, 19872171]

約数ペア:

[(1, 19872171), (3, 6624057), (9, 2208019), (11, 1806561), (33, 602187), (99, 200729), (181, 109791), (543, 36597), (1109, 17919), (1629, 12199), (1991, 9981), (3327, 5973)]