21487653

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 13763547

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 1019, 1917, 2343, 3057, 7029, 9171, 11209, 21087, 27513, 33627, 72349, 100881, 217047, 302643, 651141, 795839, 1953423, 2387517, 7162551, 21487653]

約数ペア:

[(1, 21487653), (3, 7162551), (9, 2387517), (11, 1953423), (27, 795839), (33, 651141), (71, 302643), (99, 217047), (213, 100881), (297, 72349), (639, 33627), (781, 27513), (1019, 21087), (1917, 11209), (2343, 9171), (3057, 7029)]