211157219

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 272624616

約数和(自身を除く): 61467397

約数列:

[1, 7, 13, 43, 49, 91, 169, 301, 559, 593, 637, 1183, 2107, 3913, 4151, 7267, 7709, 8281, 25499, 27391, 29057, 50869, 53963, 100217, 178493, 331487, 356083, 377741, 701519, 1249451, 2320409, 4309331, 4910633, 16242863, 30165317, 211157219]

約数ペア:

[(1, 211157219), (7, 30165317), (13, 16242863), (43, 4910633), (49, 4309331), (91, 2320409), (169, 1249451), (301, 701519), (559, 377741), (593, 356083), (637, 331487), (1183, 178493), (2107, 100217), (3913, 53963), (4151, 50869), (7267, 29057), (7709, 27391), (8281, 25499)]