2019879

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 3088800

約数和(自身を除く): 1068921

約数列:

[1, 3, 9, 29, 71, 87, 109, 213, 261, 327, 639, 981, 2059, 3161, 6177, 7739, 9483, 18531, 23217, 28449, 69651, 224431, 673293, 2019879]

約数ペア:

[(1, 2019879), (3, 673293), (9, 224431), (29, 69651), (71, 28449), (87, 23217), (109, 18531), (213, 9483), (261, 7739), (327, 6177), (639, 3161), (981, 2059)]