20197573209

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1837981}}^1$

素因数の和:1838038

約数の個数: 32

約数和(自身を含む): 33524791680

約数和(自身を除く): 13327218471

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 3663, 10989, 1837981, 5513943, 16541829, 20217791, 49625487, 60653373, 68005297, 181960119, 204015891, 545880357, 612047673, 748058267, 1836143019, 2244174801, 6732524403, 20197573209]

約数ペア:

[(1, 20197573209), (3, 6732524403), (9, 2244174801), (11, 1836143019), (27, 748058267), (33, 612047673), (37, 545880357), (99, 204015891), (111, 181960119), (297, 68005297), (333, 60653373), (407, 49625487), (999, 20217791), (1221, 16541829), (3663, 5513943), (10989, 1837981)]