16681005

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 16496595

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 47, 55, 99, 135, 141, 165, 235, 239, 297, 423, 495, 517, 705, 717, 1195, 1269, 1485, 1551, 2115, 2151, 2585, 2629, 3585, 4653, 6345, 6453, 7755, 7887, 10755, 11233, 13145, 13959, 23265, 23661, 32265, 33699, 39435, 56165, 69795, 70983, 101097, 118305, 123563, 168495, 303291, 354915, 370689, 505485, 617815, 1112067, 1516455, 1853445, 3336201, 5560335, 16681005]

約数ペア:

[(1, 16681005), (3, 5560335), (5, 3336201), (9, 1853445), (11, 1516455), (15, 1112067), (27, 617815), (33, 505485), (45, 370689), (47, 354915), (55, 303291), (99, 168495), (135, 123563), (141, 118305), (165, 101097), (235, 70983), (239, 69795), (297, 56165), (423, 39435), (495, 33699), (517, 32265), (705, 23661), (717, 23265), (1195, 13959), (1269, 13145), (1485, 11233), (1551, 10755), (2115, 7887), (2151, 7755), (2585, 6453), (2629, 6345), (3585, 4653)]