19867876

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^2\times {\mathrm{103}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 40610752

約数和(自身を除く): 20742876

約数列:

[1, 2, 4, 7, 14, 28, 83, 103, 166, 206, 332, 412, 581, 721, 1162, 1442, 2324, 2884, 6889, 8549, 13778, 17098, 27556, 34196, 48223, 59843, 96446, 119686, 192892, 239372, 709567, 1419134, 2838268, 4966969, 9933938, 19867876]

約数ペア:

[(1, 19867876), (2, 9933938), (4, 4966969), (7, 2838268), (14, 1419134), (28, 709567), (83, 239372), (103, 192892), (166, 119686), (206, 96446), (332, 59843), (412, 48223), (581, 34196), (721, 27556), (1162, 17098), (1442, 13778), (2324, 8549), (2884, 6889)]