21785192

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 48686400

約数和(自身を除く): 26901208

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 137, 139, 143, 274, 278, 286, 548, 556, 572, 1096, 1112, 1144, 1507, 1529, 1781, 1807, 3014, 3058, 3562, 3614, 6028, 6116, 7124, 7228, 12056, 12232, 14248, 14456, 19043, 19591, 19877, 38086, 39182, 39754, 76172, 78364, 79508, 152344, 156728, 159016, 209473, 247559, 418946, 495118, 837892, 990236, 1675784, 1980472, 2723149, 5446298, 10892596, 21785192]

約数ペア:

[(1, 21785192), (2, 10892596), (4, 5446298), (8, 2723149), (11, 1980472), (13, 1675784), (22, 990236), (26, 837892), (44, 495118), (52, 418946), (88, 247559), (104, 209473), (137, 159016), (139, 156728), (143, 152344), (274, 79508), (278, 78364), (286, 76172), (548, 39754), (556, 39182), (572, 38086), (1096, 19877), (1112, 19591), (1144, 19043), (1507, 14456), (1529, 14248), (1781, 12232), (1807, 12056), (3014, 7228), (3058, 7124), (3562, 6116), (3614, 6028)]