21775797

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:215

約数の個数: 40

約数和(自身を含む): 34151040

約数和(自身を除く): 12375243

約数列:

[1, 3, 9, 27, 41, 79, 81, 83, 123, 237, 249, 369, 711, 747, 1107, 2133, 2241, 3239, 3321, 3403, 6399, 6557, 6723, 9717, 10209, 19671, 29151, 30627, 59013, 87453, 91881, 177039, 262359, 268837, 275643, 531117, 806511, 2419533, 7258599, 21775797]

約数ペア:

[(1, 21775797), (3, 7258599), (9, 2419533), (27, 806511), (41, 531117), (79, 275643), (81, 268837), (83, 262359), (123, 177039), (237, 91881), (249, 87453), (369, 59013), (711, 30627), (747, 29151), (1107, 19671), (2133, 10209), (2241, 9717), (3239, 6723), (3321, 6557), (3403, 6399)]