21037608

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 60021000

約数和(自身を除く): 38983392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 53, 72, 74, 106, 111, 148, 149, 159, 212, 222, 296, 298, 318, 333, 424, 444, 447, 477, 596, 636, 666, 888, 894, 954, 1192, 1272, 1332, 1341, 1788, 1908, 1961, 2664, 2682, 3576, 3816, 3922, 5364, 5513, 5883, 7844, 7897, 10728, 11026, 11766, 15688, 15794, 16539, 17649, 22052, 23532, 23691, 31588, 33078, 35298, 44104, 47064, 47382, 49617, 63176, 66156, 70596, 71073, 94764, 99234, 132312, 141192, 142146, 189528, 198468, 284292, 292189, 396936, 568584, 584378, 876567, 1168756, 1753134, 2337512, 2629701, 3506268, 5259402, 7012536, 10518804, 21037608]

約数ペア:

[(1, 21037608), (2, 10518804), (3, 7012536), (4, 5259402), (6, 3506268), (8, 2629701), (9, 2337512), (12, 1753134), (18, 1168756), (24, 876567), (36, 584378), (37, 568584), (53, 396936), (72, 292189), (74, 284292), (106, 198468), (111, 189528), (148, 142146), (149, 141192), (159, 132312), (212, 99234), (222, 94764), (296, 71073), (298, 70596), (318, 66156), (333, 63176), (424, 49617), (444, 47382), (447, 47064), (477, 44104), (596, 35298), (636, 33078), (666, 31588), (888, 23691), (894, 23532), (954, 22052), (1192, 17649), (1272, 16539), (1332, 15794), (1341, 15688), (1788, 11766), (1908, 11026), (1961, 10728), (2664, 7897), (2682, 7844), (3576, 5883), (3816, 5513), (3922, 5364)]