28755181

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 36072960

約数和(自身を除く): 7317779

約数列:

[1, 7, 13, 91, 109, 169, 223, 763, 1183, 1417, 1561, 2899, 9919, 18421, 20293, 24307, 37687, 128947, 170149, 263809, 315991, 2211937, 4107883, 28755181]

約数ペア:

[(1, 28755181), (7, 4107883), (13, 2211937), (91, 315991), (109, 263809), (169, 170149), (223, 128947), (763, 37687), (1183, 24307), (1417, 20293), (1561, 18421), (2899, 9919)]