21889120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12437}}^1$

素因数の和:12463

約数の個数: 48

約数和(自身を含む): 56418768

約数和(自身を除く): 34529648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12437, 24874, 49748, 62185, 99496, 124370, 136807, 198992, 248740, 273614, 397984, 497480, 547228, 684035, 994960, 1094456, 1368070, 1989920, 2188912, 2736140, 4377824, 5472280, 10944560, 21889120]

約数ペア:

[(1, 21889120), (2, 10944560), (4, 5472280), (5, 4377824), (8, 2736140), (10, 2188912), (11, 1989920), (16, 1368070), (20, 1094456), (22, 994960), (32, 684035), (40, 547228), (44, 497480), (55, 397984), (80, 273614), (88, 248740), (110, 198992), (160, 136807), (176, 124370), (220, 99496), (352, 62185), (440, 49748), (880, 24874), (1760, 12437)]