19481878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 33516000

約数和(自身を除く): 14034122

約数列:

[1, 2, 13, 19, 26, 38, 113, 226, 247, 349, 494, 698, 1469, 2147, 2938, 4294, 4537, 6631, 9074, 13262, 27911, 39437, 55822, 78874, 86203, 172406, 512681, 749303, 1025362, 1498606, 9740939, 19481878]

約数ペア:

[(1, 19481878), (2, 9740939), (13, 1498606), (19, 1025362), (26, 749303), (38, 512681), (113, 172406), (226, 86203), (247, 78874), (349, 55822), (494, 39437), (698, 27911), (1469, 13262), (2147, 9074), (2938, 6631), (4294, 4537)]