21679565554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^2\times {\mathrm{311}}^1$

素因数の和:500

約数の個数: 96

約数和(自身を含む): 38241590400

約数和(自身を除く): 16562024846

約数列:

[1, 2, 17, 19, 29, 34, 38, 58, 61, 122, 311, 323, 493, 551, 622, 646, 986, 1037, 1102, 1159, 1769, 2074, 2318, 3538, 3721, 5287, 5909, 7442, 9019, 9367, 10574, 11818, 18038, 18734, 18971, 19703, 30073, 33611, 37942, 39406, 60146, 63257, 67222, 70699, 100453, 107909, 126514, 141398, 153323, 171361, 200906, 215818, 306646, 322507, 342722, 360449, 550159, 571387, 645014, 720898, 1100318, 1142774, 1157231, 1201883, 1834453, 2050271, 2314462, 2403766, 2913137, 3668906, 4100542, 5826274, 6127633, 9352703, 10453021, 12255266, 18705406, 19672927, 20906042, 21987389, 33559699, 34854607, 39345854, 43974778, 67119398, 69709214, 177701357, 355402714, 373785613, 570514883, 637634281, 747571226, 1141029766, 1275268562, 10839782777, 21679565554]

約数ペア:

[(1, 21679565554), (2, 10839782777), (17, 1275268562), (19, 1141029766), (29, 747571226), (34, 637634281), (38, 570514883), (58, 373785613), (61, 355402714), (122, 177701357), (311, 69709214), (323, 67119398), (493, 43974778), (551, 39345854), (622, 34854607), (646, 33559699), (986, 21987389), (1037, 20906042), (1102, 19672927), (1159, 18705406), (1769, 12255266), (2074, 10453021), (2318, 9352703), (3538, 6127633), (3721, 5826274), (5287, 4100542), (5909, 3668906), (7442, 2913137), (9019, 2403766), (9367, 2314462), (10574, 2050271), (11818, 1834453), (18038, 1201883), (18734, 1157231), (18971, 1142774), (19703, 1100318), (30073, 720898), (33611, 645014), (37942, 571387), (39406, 550159), (60146, 360449), (63257, 342722), (67222, 322507), (70699, 306646), (100453, 215818), (107909, 200906), (126514, 171361), (141398, 153323)]