681553509

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{1061}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 1131871104

約数和(自身を除く): 450317595

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 181, 273, 507, 543, 1061, 1183, 1267, 2353, 3183, 3549, 3801, 7059, 7427, 13793, 16471, 22281, 30589, 41379, 49413, 91767, 96551, 179309, 192041, 214123, 289653, 537927, 576123, 642369, 1255163, 1344287, 2496533, 3765489, 4032861, 7489599, 17475731, 32454929, 52427193, 97364787, 227184503, 681553509]

約数ペア:

[(1, 681553509), (3, 227184503), (7, 97364787), (13, 52427193), (21, 32454929), (39, 17475731), (91, 7489599), (169, 4032861), (181, 3765489), (273, 2496533), (507, 1344287), (543, 1255163), (1061, 642369), (1183, 576123), (1267, 537927), (2353, 289653), (3183, 214123), (3549, 192041), (3801, 179309), (7059, 96551), (7427, 91767), (13793, 49413), (16471, 41379), (22281, 30589)]