31371781467

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{45869}}^1$

素因数の和:45988

約数の個数: 48

約数和(自身を含む): 48350649600

約数和(自身を除く): 16978868133

約数列:

[1, 3, 13, 19, 39, 57, 71, 169, 213, 247, 507, 741, 923, 1349, 2769, 3211, 4047, 9633, 11999, 17537, 35997, 45869, 52611, 137607, 227981, 596297, 683943, 871511, 1788891, 2614533, 3256699, 7751861, 9770097, 11329643, 23255583, 33988929, 42337087, 61877281, 127011261, 147285359, 185631843, 441856077, 550382131, 804404653, 1651146393, 2413213959, 10457260489, 31371781467]

約数ペア:

[(1, 31371781467), (3, 10457260489), (13, 2413213959), (19, 1651146393), (39, 804404653), (57, 550382131), (71, 441856077), (169, 185631843), (213, 147285359), (247, 127011261), (507, 61877281), (741, 42337087), (923, 33988929), (1349, 23255583), (2769, 11329643), (3211, 9770097), (4047, 7751861), (9633, 3256699), (11999, 2614533), (17537, 1788891), (35997, 871511), (45869, 683943), (52611, 596297), (137607, 227981)]