19506179

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 26112000

約数和(自身を除く): 6605821

約数列:

[1, 7, 11, 19, 67, 77, 133, 199, 209, 469, 737, 1273, 1393, 1463, 2189, 3781, 5159, 8911, 13333, 14003, 15323, 26467, 41591, 93331, 98021, 146663, 253327, 291137, 1026641, 1773289, 2786597, 19506179]

約数ペア:

[(1, 19506179), (7, 2786597), (11, 1773289), (19, 1026641), (67, 291137), (77, 253327), (133, 146663), (199, 98021), (209, 93331), (469, 41591), (737, 26467), (1273, 15323), (1393, 14003), (1463, 13333), (2189, 8911), (3781, 5159)]