90855947

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 121347072

約数和(自身を除く): 30491125

約数列:

[1, 7, 13, 31, 43, 49, 91, 107, 217, 301, 403, 559, 637, 749, 1333, 1391, 1519, 2107, 2821, 3317, 3913, 4601, 5243, 9331, 9737, 17329, 19747, 23219, 27391, 32207, 43121, 59813, 65317, 68159, 121303, 142631, 162533, 225449, 301847, 418691, 849121, 998417, 1854203, 2112929, 2930837, 6988919, 12979421, 90855947]

約数ペア:

[(1, 90855947), (7, 12979421), (13, 6988919), (31, 2930837), (43, 2112929), (49, 1854203), (91, 998417), (107, 849121), (217, 418691), (301, 301847), (403, 225449), (559, 162533), (637, 142631), (749, 121303), (1333, 68159), (1391, 65317), (1519, 59813), (2107, 43121), (2821, 32207), (3317, 27391), (3913, 23219), (4601, 19747), (5243, 17329), (9331, 9737)]