19213103

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 24156000

約数和(自身を除く): 4942897

約数列:

[1, 7, 13, 91, 109, 149, 169, 763, 1043, 1183, 1417, 1937, 9919, 13559, 16241, 18421, 25181, 113687, 128947, 176267, 211133, 1477931, 2744729, 19213103]

約数ペア:

[(1, 19213103), (7, 2744729), (13, 1477931), (91, 211133), (109, 176267), (149, 128947), (169, 113687), (763, 25181), (1043, 18421), (1183, 16241), (1417, 13559), (1937, 9919)]