21081312

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10457}}^1$

素因数の和:10480

約数の個数: 72

約数和(自身を含む): 68520816

約数和(自身を除く): 47439504

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10457, 20914, 31371, 41828, 62742, 73199, 83656, 94113, 125484, 146398, 167312, 188226, 219597, 250968, 292796, 334624, 376452, 439194, 501936, 585592, 658791, 752904, 878388, 1003872, 1171184, 1317582, 1505808, 1756776, 2342368, 2635164, 3011616, 3513552, 5270328, 7027104, 10540656, 21081312]

約数ペア:

[(1, 21081312), (2, 10540656), (3, 7027104), (4, 5270328), (6, 3513552), (7, 3011616), (8, 2635164), (9, 2342368), (12, 1756776), (14, 1505808), (16, 1317582), (18, 1171184), (21, 1003872), (24, 878388), (28, 752904), (32, 658791), (36, 585592), (42, 501936), (48, 439194), (56, 376452), (63, 334624), (72, 292796), (84, 250968), (96, 219597), (112, 188226), (126, 167312), (144, 146398), (168, 125484), (224, 94113), (252, 83656), (288, 73199), (336, 62742), (504, 41828), (672, 31371), (1008, 20914), (2016, 10457)]