21993730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1117}}^1$

素因数の和:1314

約数の個数: 32

約数和(自身を含む): 43467840

約数和(自身を除く): 21474110

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1117, 1790, 1969, 2234, 3938, 5585, 9845, 11170, 12287, 19690, 24574, 61435, 122870, 199943, 399886, 999715, 1999430, 2199373, 4398746, 10996865, 21993730]

約数ペア:

[(1, 21993730), (2, 10996865), (5, 4398746), (10, 2199373), (11, 1999430), (22, 999715), (55, 399886), (110, 199943), (179, 122870), (358, 61435), (895, 24574), (1117, 19690), (1790, 12287), (1969, 11170), (2234, 9845), (3938, 5585)]