21715696784

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1\times {\mathrm{983}}^1$

素因数の和:1392

約数の個数: 80

約数和(自身を含む): 43486502400

約数和(自身を除く): 21770805616

約数列:

[1, 2, 4, 8, 16, 53, 106, 109, 212, 218, 239, 424, 436, 478, 848, 872, 956, 983, 1744, 1912, 1966, 3824, 3932, 5777, 7864, 11554, 12667, 15728, 23108, 25334, 26051, 46216, 50668, 52099, 52102, 92432, 101336, 104198, 104204, 107147, 202672, 208396, 208408, 214294, 234937, 416792, 416816, 428588, 469874, 833584, 857176, 939748, 1380703, 1714352, 1879496, 2761406, 3758992, 5522812, 5678791, 11045624, 11357582, 12451661, 22091248, 22715164, 24903322, 25608133, 45430328, 49806644, 51216266, 90860656, 99613288, 102432532, 199226576, 204865064, 409730128, 1357231049, 2714462098, 5428924196, 10857848392, 21715696784]

約数ペア:

[(1, 21715696784), (2, 10857848392), (4, 5428924196), (8, 2714462098), (16, 1357231049), (53, 409730128), (106, 204865064), (109, 199226576), (212, 102432532), (218, 99613288), (239, 90860656), (424, 51216266), (436, 49806644), (478, 45430328), (848, 25608133), (872, 24903322), (956, 22715164), (983, 22091248), (1744, 12451661), (1912, 11357582), (1966, 11045624), (3824, 5678791), (3932, 5522812), (5777, 3758992), (7864, 2761406), (11554, 1879496), (12667, 1714352), (15728, 1380703), (23108, 939748), (25334, 857176), (26051, 833584), (46216, 469874), (50668, 428588), (52099, 416816), (52102, 416792), (92432, 234937), (101336, 214294), (104198, 208408), (104204, 208396), (107147, 202672)]