18913035

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 31288320

約数和(自身を除く): 12375285

約数列:

[1, 3, 5, 15, 47, 139, 141, 193, 235, 417, 579, 695, 705, 965, 2085, 2895, 6533, 9071, 19599, 26827, 27213, 32665, 45355, 80481, 97995, 134135, 136065, 402405, 1260869, 3782607, 6304345, 18913035]

約数ペア:

[(1, 18913035), (3, 6304345), (5, 3782607), (15, 1260869), (47, 402405), (139, 136065), (141, 134135), (193, 97995), (235, 80481), (417, 45355), (579, 32665), (695, 27213), (705, 26827), (965, 19599), (2085, 9071), (2895, 6533)]