20030907

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 30417408

約数和(自身を除く): 10386501

約数列:

[1, 3, 13, 23, 39, 69, 137, 163, 299, 411, 489, 897, 1781, 2119, 3151, 3749, 5343, 6357, 9453, 11247, 22331, 40963, 48737, 66993, 122889, 146211, 290303, 513613, 870909, 1540839, 6676969, 20030907]

約数ペア:

[(1, 20030907), (3, 6676969), (13, 1540839), (23, 870909), (39, 513613), (69, 290303), (137, 146211), (163, 122889), (299, 66993), (411, 48737), (489, 40963), (897, 22331), (1781, 11247), (2119, 9453), (3151, 6357), (3749, 5343)]