19516686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 48299520

約数和(自身を除く): 28782834

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 661, 703, 777, 798, 1322, 1406, 1554, 1983, 2109, 3966, 4218, 4627, 4921, 9254, 9842, 12559, 13881, 14763, 24457, 25118, 27762, 29526, 37677, 48914, 73371, 75354, 87913, 146742, 171199, 175826, 263739, 342398, 464683, 513597, 527478, 929366, 1027194, 1394049, 2788098, 3252781, 6505562, 9758343, 19516686]

約数ペア:

[(1, 19516686), (2, 9758343), (3, 6505562), (6, 3252781), (7, 2788098), (14, 1394049), (19, 1027194), (21, 929366), (37, 527478), (38, 513597), (42, 464683), (57, 342398), (74, 263739), (111, 175826), (114, 171199), (133, 146742), (222, 87913), (259, 75354), (266, 73371), (399, 48914), (518, 37677), (661, 29526), (703, 27762), (777, 25118), (798, 24457), (1322, 14763), (1406, 13881), (1554, 12559), (1983, 9842), (2109, 9254), (3966, 4921), (4218, 4627)]