21992031

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{557}}^1$

素因数の和:711

約数の個数: 24

約数和(自身を含む): 32904144

約数和(自身を除く): 10912113

約数列:

[1, 3, 9, 41, 107, 123, 321, 369, 557, 963, 1671, 4387, 5013, 13161, 22837, 39483, 59599, 68511, 178797, 205533, 536391, 2443559, 7330677, 21992031]

約数ペア:

[(1, 21992031), (3, 7330677), (9, 2443559), (41, 536391), (107, 205533), (123, 178797), (321, 68511), (369, 59599), (557, 39483), (963, 22837), (1671, 13161), (4387, 5013)]