19947033

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 31153920

約数和(自身を除く): 11206887

約数列:

[1, 3, 9, 27, 37, 41, 111, 123, 333, 369, 487, 999, 1107, 1461, 1517, 4383, 4551, 13149, 13653, 18019, 19967, 40959, 54057, 59901, 162171, 179703, 486513, 539109, 738779, 2216337, 6649011, 19947033]

約数ペア:

[(1, 19947033), (3, 6649011), (9, 2216337), (27, 738779), (37, 539109), (41, 486513), (111, 179703), (123, 162171), (333, 59901), (369, 54057), (487, 40959), (999, 19967), (1107, 18019), (1461, 13653), (1517, 13149), (4383, 4551)]