18665955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5387}}^1$

素因数の和:5416

約数の個数: 48

約数和(自身を含む): 40345344

約数和(自身を除く): 21679389

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5387, 16161, 26935, 37709, 48483, 59257, 80805, 113127, 177771, 188545, 242415, 296285, 339381, 414799, 533313, 565635, 888855, 1244397, 1696905, 2073995, 2666565, 3733191, 6221985, 18665955]

約数ペア:

[(1, 18665955), (3, 6221985), (5, 3733191), (7, 2666565), (9, 2073995), (11, 1696905), (15, 1244397), (21, 888855), (33, 565635), (35, 533313), (45, 414799), (55, 339381), (63, 296285), (77, 242415), (99, 188545), (105, 177771), (165, 113127), (231, 80805), (315, 59257), (385, 48483), (495, 37709), (693, 26935), (1155, 16161), (3465, 5387)]