51191959

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 64093920

約数和(自身を除く): 12901961

約数列:

[1, 7, 13, 91, 109, 169, 397, 763, 1183, 1417, 2779, 5161, 9919, 18421, 36127, 43273, 67093, 128947, 302911, 469651, 562549, 3937843, 7313137, 51191959]

約数ペア:

[(1, 51191959), (7, 7313137), (13, 3937843), (91, 562549), (109, 469651), (169, 302911), (397, 128947), (763, 67093), (1183, 43273), (1417, 36127), (2779, 18421), (5161, 9919)]