20067993

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 40

約数和(自身を含む): 33175296

約数和(自身を除く): 13107303

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 101, 223, 297, 303, 669, 891, 909, 1111, 2007, 2453, 2727, 3333, 6021, 7359, 8181, 9999, 18063, 22077, 22523, 29997, 66231, 67569, 89991, 198693, 202707, 247753, 608121, 743259, 1824363, 2229777, 6689331, 20067993]

約数ペア:

[(1, 20067993), (3, 6689331), (9, 2229777), (11, 1824363), (27, 743259), (33, 608121), (81, 247753), (99, 202707), (101, 198693), (223, 89991), (297, 67569), (303, 66231), (669, 29997), (891, 22523), (909, 22077), (1111, 18063), (2007, 9999), (2453, 8181), (2727, 7359), (3333, 6021)]