21495152

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 50663424

約数和(自身を除く): 29168272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 41, 56, 62, 82, 112, 124, 151, 164, 217, 248, 287, 302, 328, 434, 496, 574, 604, 656, 868, 1057, 1148, 1208, 1271, 1736, 2114, 2296, 2416, 2542, 3472, 4228, 4592, 4681, 5084, 6191, 8456, 8897, 9362, 10168, 12382, 16912, 17794, 18724, 20336, 24764, 32767, 35588, 37448, 43337, 49528, 65534, 71176, 74896, 86674, 99056, 131068, 142352, 173348, 191921, 262136, 346696, 383842, 524272, 693392, 767684, 1343447, 1535368, 2686894, 3070736, 5373788, 10747576, 21495152]

約数ペア:

[(1, 21495152), (2, 10747576), (4, 5373788), (7, 3070736), (8, 2686894), (14, 1535368), (16, 1343447), (28, 767684), (31, 693392), (41, 524272), (56, 383842), (62, 346696), (82, 262136), (112, 191921), (124, 173348), (151, 142352), (164, 131068), (217, 99056), (248, 86674), (287, 74896), (302, 71176), (328, 65534), (434, 49528), (496, 43337), (574, 37448), (604, 35588), (656, 32767), (868, 24764), (1057, 20336), (1148, 18724), (1208, 17794), (1271, 16912), (1736, 12382), (2114, 10168), (2296, 9362), (2416, 8897), (2542, 8456), (3472, 6191), (4228, 5084), (4592, 4681)]