138516287

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 36

約数和(自身を含む): 178995960

約数和(自身を除く): 40479673

約数列:

[1, 7, 13, 43, 49, 91, 169, 301, 389, 559, 637, 1183, 2107, 2723, 3913, 5057, 7267, 8281, 16727, 19061, 27391, 35399, 50869, 65741, 117089, 217451, 247793, 356083, 460187, 819623, 1522157, 2826863, 3221309, 10655099, 19788041, 138516287]

約数ペア:

[(1, 138516287), (7, 19788041), (13, 10655099), (43, 3221309), (49, 2826863), (91, 1522157), (169, 819623), (301, 460187), (389, 356083), (559, 247793), (637, 217451), (1183, 117089), (2107, 65741), (2723, 50869), (3913, 35399), (5057, 27391), (7267, 19061), (8281, 16727)]