21381394992

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{169823}}^1$

素因数の和:169938

約数の個数: 80

約数和(自身を含む): 57446704128

約数和(自身を除く): 36065309136

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 61, 86, 122, 129, 172, 183, 244, 258, 344, 366, 488, 516, 688, 732, 976, 1032, 1464, 2064, 2623, 2928, 5246, 7869, 10492, 15738, 20984, 31476, 41968, 62952, 125904, 169823, 339646, 509469, 679292, 1018938, 1358584, 2037876, 2717168, 4075752, 7302389, 8151504, 10359203, 14604778, 20718406, 21907167, 29209556, 31077609, 41436812, 43814334, 58419112, 62155218, 82873624, 87628668, 116838224, 124310436, 165747248, 175257336, 248620872, 350514672, 445445729, 497241744, 890891458, 1336337187, 1781782916, 2672674374, 3563565832, 5345348748, 7127131664, 10690697496, 21381394992]

約数ペア:

[(1, 21381394992), (2, 10690697496), (3, 7127131664), (4, 5345348748), (6, 3563565832), (8, 2672674374), (12, 1781782916), (16, 1336337187), (24, 890891458), (43, 497241744), (48, 445445729), (61, 350514672), (86, 248620872), (122, 175257336), (129, 165747248), (172, 124310436), (183, 116838224), (244, 87628668), (258, 82873624), (344, 62155218), (366, 58419112), (488, 43814334), (516, 41436812), (688, 31077609), (732, 29209556), (976, 21907167), (1032, 20718406), (1464, 14604778), (2064, 10359203), (2623, 8151504), (2928, 7302389), (5246, 4075752), (7869, 2717168), (10492, 2037876), (15738, 1358584), (20984, 1018938), (31476, 679292), (41968, 509469), (62952, 339646), (125904, 169823)]