21740824

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 50621760

約数和(自身を除く): 28880936

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 41, 56, 68, 82, 119, 136, 164, 238, 287, 328, 476, 557, 574, 697, 952, 1114, 1148, 1394, 2228, 2296, 2788, 3899, 4456, 4879, 5576, 7798, 9469, 9758, 15596, 18938, 19516, 22837, 31192, 37876, 39032, 45674, 66283, 75752, 91348, 132566, 159859, 182696, 265132, 319718, 388229, 530264, 639436, 776458, 1278872, 1552916, 2717603, 3105832, 5435206, 10870412, 21740824]

約数ペア:

[(1, 21740824), (2, 10870412), (4, 5435206), (7, 3105832), (8, 2717603), (14, 1552916), (17, 1278872), (28, 776458), (34, 639436), (41, 530264), (56, 388229), (68, 319718), (82, 265132), (119, 182696), (136, 159859), (164, 132566), (238, 91348), (287, 75752), (328, 66283), (476, 45674), (557, 39032), (574, 37876), (697, 31192), (952, 22837), (1114, 19516), (1148, 18938), (1394, 15596), (2228, 9758), (2296, 9469), (2788, 7798), (3899, 5576), (4456, 4879)]