19409555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 26991360

約数和(自身を除く): 7581805

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 283, 319, 473, 1247, 1415, 1595, 2365, 3113, 6235, 8207, 12169, 13717, 15565, 41035, 60845, 68585, 90277, 133859, 352901, 451385, 669295, 1764505, 3881911, 19409555]

約数ペア:

[(1, 19409555), (5, 3881911), (11, 1764505), (29, 669295), (43, 451385), (55, 352901), (145, 133859), (215, 90277), (283, 68585), (319, 60845), (473, 41035), (1247, 15565), (1415, 13717), (1595, 12169), (2365, 8207), (3113, 6235)]