209857788

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{118967}}^1$

素因数の和:118991

約数の個数: 54

約数和(自身を含む): 617087016

約数和(自身を除く): 407229228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 118967, 237934, 356901, 475868, 713802, 832769, 1070703, 1427604, 1665538, 2141406, 2498307, 3331076, 4282812, 4996614, 5829383, 7494921, 9993228, 11658766, 14989842, 17488149, 23317532, 29979684, 34976298, 52464447, 69952596, 104928894, 209857788]

約数ペア:

[(1, 209857788), (2, 104928894), (3, 69952596), (4, 52464447), (6, 34976298), (7, 29979684), (9, 23317532), (12, 17488149), (14, 14989842), (18, 11658766), (21, 9993228), (28, 7494921), (36, 5829383), (42, 4996614), (49, 4282812), (63, 3331076), (84, 2498307), (98, 2141406), (126, 1665538), (147, 1427604), (196, 1070703), (252, 832769), (294, 713802), (441, 475868), (588, 356901), (882, 237934), (1764, 118967)]