18685303

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 5990537

約数列:

[1, 7, 13, 19, 91, 101, 107, 133, 247, 707, 749, 1313, 1391, 1729, 1919, 2033, 9191, 9737, 10807, 13433, 14231, 24947, 26429, 75649, 140491, 174629, 185003, 205333, 983437, 1437331, 2669329, 18685303]

約数ペア:

[(1, 18685303), (7, 2669329), (13, 1437331), (19, 983437), (91, 205333), (101, 185003), (107, 174629), (133, 140491), (247, 75649), (707, 26429), (749, 24947), (1313, 14231), (1391, 13433), (1729, 10807), (1919, 9737), (2033, 9191)]