19992951

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{1669}}^1$

素因数の和:1708

約数の個数: 24

約数和(自身を含む): 31783440

約数和(自身を除く): 11790489

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 1331, 1669, 3993, 5007, 11979, 15021, 18359, 55077, 165231, 201949, 605847, 1817541, 2221439, 6664317, 19992951]

約数ペア:

[(1, 19992951), (3, 6664317), (9, 2221439), (11, 1817541), (33, 605847), (99, 201949), (121, 165231), (363, 55077), (1089, 18359), (1331, 15021), (1669, 11979), (3993, 5007)]