17138779

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 21546000

約数和(自身を除く): 4407221

約数列:

[1, 7, 19, 41, 49, 133, 287, 449, 779, 931, 2009, 3143, 5453, 8531, 18409, 22001, 38171, 59717, 128863, 349771, 418019, 902041, 2448397, 17138779]

約数ペア:

[(1, 17138779), (7, 2448397), (19, 902041), (41, 418019), (49, 349771), (133, 128863), (287, 59717), (449, 38171), (779, 22001), (931, 18409), (2009, 8531), (3143, 5453)]