221273416

素因数分解:

$2^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{6203}}^1$

素因数の和:6243

約数の個数: 64

約数和(自身を含む): 521136000

約数和(自身を除く): 299862584

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 343, 364, 392, 637, 686, 728, 1274, 1372, 2548, 2744, 4459, 5096, 6203, 8918, 12406, 17836, 24812, 35672, 43421, 49624, 80639, 86842, 161278, 173684, 303947, 322556, 347368, 564473, 607894, 645112, 1128946, 1215788, 2127629, 2257892, 2431576, 3951311, 4255258, 4515784, 7902622, 8510516, 15805244, 17021032, 27659177, 31610488, 55318354, 110636708, 221273416]

約数ペア:

[(1, 221273416), (2, 110636708), (4, 55318354), (7, 31610488), (8, 27659177), (13, 17021032), (14, 15805244), (26, 8510516), (28, 7902622), (49, 4515784), (52, 4255258), (56, 3951311), (91, 2431576), (98, 2257892), (104, 2127629), (182, 1215788), (196, 1128946), (343, 645112), (364, 607894), (392, 564473), (637, 347368), (686, 322556), (728, 303947), (1274, 173684), (1372, 161278), (2548, 86842), (2744, 80639), (4459, 49624), (5096, 43421), (6203, 35672), (8918, 24812), (12406, 17836)]