19196639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{67}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 24695424

約数和(自身を除く): 5498785

約数列:

[1, 7, 11, 61, 67, 77, 427, 469, 671, 737, 3721, 4087, 4697, 5159, 26047, 28609, 40931, 44957, 249307, 286517, 314699, 1745149, 2742377, 19196639]

約数ペア:

[(1, 19196639), (7, 2742377), (11, 1745149), (61, 314699), (67, 286517), (77, 249307), (427, 44957), (469, 40931), (671, 28609), (737, 26047), (3721, 5159), (4087, 4697)]