13581428

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 29232000

約数和(自身を除く): 15650572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 521, 532, 686, 931, 1042, 1372, 1862, 2084, 3647, 3724, 6517, 7294, 9899, 13034, 14588, 19798, 25529, 26068, 39596, 51058, 69293, 102116, 138586, 178703, 277172, 357406, 485051, 714812, 970102, 1940204, 3395357, 6790714, 13581428]

約数ペア:

[(1, 13581428), (2, 6790714), (4, 3395357), (7, 1940204), (14, 970102), (19, 714812), (28, 485051), (38, 357406), (49, 277172), (76, 178703), (98, 138586), (133, 102116), (196, 69293), (266, 51058), (343, 39596), (521, 26068), (532, 25529), (686, 19798), (931, 14588), (1042, 13034), (1372, 9899), (1862, 7294), (2084, 6517), (3647, 3724)]