87969213

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 133689600

約数和(自身を除く): 45720387

約数列:

[1, 3, 9, 27, 71, 109, 213, 327, 421, 639, 981, 1263, 1917, 2943, 3789, 7739, 11367, 23217, 29891, 45889, 69651, 89673, 137667, 208953, 269019, 413001, 807057, 1239003, 3258119, 9774357, 29323071, 87969213]

約数ペア:

[(1, 87969213), (3, 29323071), (9, 9774357), (27, 3258119), (71, 1239003), (109, 807057), (213, 413001), (327, 269019), (421, 208953), (639, 137667), (981, 89673), (1263, 69651), (1917, 45889), (2943, 29891), (3789, 23217), (7739, 11367)]