21931378

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 38697984

約数和(自身を除く): 16766606

約数列:

[1, 2, 7, 14, 67, 103, 134, 206, 227, 454, 469, 721, 938, 1442, 1589, 3178, 6901, 13802, 15209, 23381, 30418, 46762, 48307, 96614, 106463, 163667, 212926, 327334, 1566527, 3133054, 10965689, 21931378]

約数ペア:

[(1, 21931378), (2, 10965689), (7, 3133054), (14, 1566527), (67, 327334), (103, 212926), (134, 163667), (206, 106463), (227, 96614), (454, 48307), (469, 46762), (721, 30418), (938, 23381), (1442, 15209), (1589, 13802), (3178, 6901)]