18721556

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 40755456

約数和(自身を除く): 22033900

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 476, 518, 629, 1036, 1063, 1258, 2126, 2516, 4252, 4403, 7441, 8806, 14882, 17612, 18071, 29764, 36142, 39331, 72284, 78662, 126497, 157324, 252994, 275317, 505988, 550634, 668627, 1101268, 1337254, 2674508, 4680389, 9360778, 18721556]

約数ペア:

[(1, 18721556), (2, 9360778), (4, 4680389), (7, 2674508), (14, 1337254), (17, 1101268), (28, 668627), (34, 550634), (37, 505988), (68, 275317), (74, 252994), (119, 157324), (148, 126497), (238, 78662), (259, 72284), (476, 39331), (518, 36142), (629, 29764), (1036, 18071), (1063, 17612), (1258, 14882), (2126, 8806), (2516, 7441), (4252, 4403)]