21000434696

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:927

約数の個数: 96

約数和(自身を含む): 42612091200

約数和(自身を除く): 21611656504

約数列:

[1, 2, 4, 8, 17, 34, 68, 101, 136, 139, 202, 278, 289, 404, 556, 578, 647, 808, 1112, 1156, 1294, 1717, 2312, 2363, 2588, 3434, 4726, 5176, 6868, 9452, 10999, 13736, 14039, 18904, 21998, 28078, 29189, 40171, 43996, 56156, 58378, 65347, 80342, 87992, 89933, 112312, 116756, 130694, 160684, 179866, 186983, 233512, 238663, 261388, 321368, 359732, 373966, 477326, 522776, 719464, 747932, 954652, 1110899, 1495864, 1528861, 1909304, 2221798, 3057722, 4057271, 4443596, 6115444, 8114542, 8887192, 9083233, 12230888, 16229084, 18166466, 18885283, 25990637, 32458168, 36332932, 37770566, 51981274, 72665864, 75541132, 103962548, 151082264, 154414961, 207925096, 308829922, 617659844, 1235319688, 2625054337, 5250108674, 10500217348, 21000434696]

約数ペア:

[(1, 21000434696), (2, 10500217348), (4, 5250108674), (8, 2625054337), (17, 1235319688), (34, 617659844), (68, 308829922), (101, 207925096), (136, 154414961), (139, 151082264), (202, 103962548), (278, 75541132), (289, 72665864), (404, 51981274), (556, 37770566), (578, 36332932), (647, 32458168), (808, 25990637), (1112, 18885283), (1156, 18166466), (1294, 16229084), (1717, 12230888), (2312, 9083233), (2363, 8887192), (2588, 8114542), (3434, 6115444), (4726, 4443596), (5176, 4057271), (6868, 3057722), (9452, 2221798), (10999, 1909304), (13736, 1528861), (14039, 1495864), (18904, 1110899), (21998, 954652), (28078, 747932), (29189, 719464), (40171, 522776), (43996, 477326), (56156, 373966), (58378, 359732), (65347, 321368), (80342, 261388), (87992, 238663), (89933, 233512), (112312, 186983), (116756, 179866), (130694, 160684)]