20110869

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 31409280

約数和(自身を除く): 11298411

約数列:

[1, 3, 9, 27, 37, 41, 111, 123, 333, 369, 491, 999, 1107, 1473, 1517, 4419, 4551, 13257, 13653, 18167, 20131, 40959, 54501, 60393, 163503, 181179, 490509, 543537, 744847, 2234541, 6703623, 20110869]

約数ペア:

[(1, 20110869), (3, 6703623), (9, 2234541), (27, 744847), (37, 543537), (41, 490509), (111, 181179), (123, 163503), (333, 60393), (369, 54501), (491, 40959), (999, 20131), (1107, 18167), (1473, 13653), (1517, 13257), (4419, 4551)]