18876816

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:389

約数の個数: 120

約数和(自身を含む): 61565504

約数和(自身を除く): 42688688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 61, 63, 72, 84, 112, 122, 126, 144, 168, 183, 244, 252, 307, 336, 366, 427, 488, 504, 549, 614, 732, 854, 921, 976, 1008, 1098, 1228, 1281, 1464, 1708, 1842, 2149, 2196, 2456, 2562, 2763, 2928, 3416, 3684, 3843, 4298, 4392, 4912, 5124, 5526, 6447, 6832, 7368, 7686, 8596, 8784, 10248, 11052, 12894, 14736, 15372, 17192, 18727, 19341, 20496, 22104, 25788, 30744, 34384, 37454, 38682, 44208, 51576, 56181, 61488, 74908, 77364, 103152, 112362, 131089, 149816, 154728, 168543, 224724, 262178, 299632, 309456, 337086, 393267, 449448, 524356, 674172, 786534, 898896, 1048712, 1179801, 1348344, 1573068, 2097424, 2359602, 2696688, 3146136, 4719204, 6292272, 9438408, 18876816]

約数ペア:

[(1, 18876816), (2, 9438408), (3, 6292272), (4, 4719204), (6, 3146136), (7, 2696688), (8, 2359602), (9, 2097424), (12, 1573068), (14, 1348344), (16, 1179801), (18, 1048712), (21, 898896), (24, 786534), (28, 674172), (36, 524356), (42, 449448), (48, 393267), (56, 337086), (61, 309456), (63, 299632), (72, 262178), (84, 224724), (112, 168543), (122, 154728), (126, 149816), (144, 131089), (168, 112362), (183, 103152), (244, 77364), (252, 74908), (307, 61488), (336, 56181), (366, 51576), (427, 44208), (488, 38682), (504, 37454), (549, 34384), (614, 30744), (732, 25788), (854, 22104), (921, 20496), (976, 19341), (1008, 18727), (1098, 17192), (1228, 15372), (1281, 14736), (1464, 12894), (1708, 11052), (1842, 10248), (2149, 8784), (2196, 8596), (2456, 7686), (2562, 7368), (2763, 6832), (2928, 6447), (3416, 5526), (3684, 5124), (3843, 4912), (4298, 4392)]