21987672

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{2671}}^1$

素因数の和:2701

約数の個数: 64

約数和(自身を含む): 64128000

約数和(自身を除く): 42140328

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 343, 392, 588, 686, 1029, 1176, 1372, 2058, 2671, 2744, 4116, 5342, 8013, 8232, 10684, 16026, 18697, 21368, 32052, 37394, 56091, 64104, 74788, 112182, 130879, 149576, 224364, 261758, 392637, 448728, 523516, 785274, 916153, 1047032, 1570548, 1832306, 2748459, 3141096, 3664612, 5496918, 7329224, 10993836, 21987672]

約数ペア:

[(1, 21987672), (2, 10993836), (3, 7329224), (4, 5496918), (6, 3664612), (7, 3141096), (8, 2748459), (12, 1832306), (14, 1570548), (21, 1047032), (24, 916153), (28, 785274), (42, 523516), (49, 448728), (56, 392637), (84, 261758), (98, 224364), (147, 149576), (168, 130879), (196, 112182), (294, 74788), (343, 64104), (392, 56091), (588, 37394), (686, 32052), (1029, 21368), (1176, 18697), (1372, 16026), (2058, 10684), (2671, 8232), (2744, 8013), (4116, 5342)]