20165871

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^2$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 30796416

約数和(自身を除く): 10630545

約数列:

[1, 3, 11, 23, 33, 69, 163, 253, 489, 759, 1793, 3749, 5379, 11247, 26569, 41239, 79707, 123717, 292259, 611087, 876777, 1833261, 6721957, 20165871]

約数ペア:

[(1, 20165871), (3, 6721957), (11, 1833261), (23, 876777), (33, 611087), (69, 292259), (163, 123717), (253, 79707), (489, 41239), (759, 26569), (1793, 11247), (3749, 5379)]