128875551

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3529}}^1$

素因数の和:3623

約数の個数: 32

約数和(自身を含む): 206039040

約数和(自身を除く): 77163489

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 987, 1739, 3529, 5217, 10587, 12173, 24703, 36519, 74109, 130573, 165863, 391719, 497589, 914011, 1161041, 2742033, 3483123, 6136931, 18410793, 42958517, 128875551]

約数ペア:

[(1, 128875551), (3, 42958517), (7, 18410793), (21, 6136931), (37, 3483123), (47, 2742033), (111, 1161041), (141, 914011), (259, 497589), (329, 391719), (777, 165863), (987, 130573), (1739, 74109), (3529, 36519), (5217, 24703), (10587, 12173)]