19131345

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9887}}^1$

素因数の和:9941

約数の個数: 24

約数和(自身を含む): 33935616

約数和(自身を除く): 14804271

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9887, 29661, 49435, 88983, 148305, 425141, 444915, 1275423, 2125705, 3826269, 6377115, 19131345]

約数ペア:

[(1, 19131345), (3, 6377115), (5, 3826269), (9, 2125705), (15, 1275423), (43, 444915), (45, 425141), (129, 148305), (215, 88983), (387, 49435), (645, 29661), (1935, 9887)]