19100557

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 5229683

約数列:

[1, 7, 23, 31, 43, 89, 161, 217, 301, 623, 713, 989, 1333, 2047, 2759, 3827, 4991, 6923, 9331, 14329, 19313, 26789, 30659, 63457, 88021, 118637, 214613, 444199, 616147, 830459, 2728651, 19100557]

約数ペア:

[(1, 19100557), (7, 2728651), (23, 830459), (31, 616147), (43, 444199), (89, 214613), (161, 118637), (217, 88021), (301, 63457), (623, 30659), (713, 26789), (989, 19313), (1333, 14329), (2047, 9331), (2759, 6923), (3827, 4991)]