19667895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{349}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 36103200

約数和(自身を除く): 16435305

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 289, 349, 663, 867, 1047, 1105, 1445, 1745, 3315, 3757, 4335, 4537, 5235, 5933, 11271, 13611, 17799, 18785, 22685, 29665, 56355, 68055, 77129, 88995, 100861, 231387, 302583, 385645, 504305, 1156935, 1311193, 1512915, 3933579, 6555965, 19667895]

約数ペア:

[(1, 19667895), (3, 6555965), (5, 3933579), (13, 1512915), (15, 1311193), (17, 1156935), (39, 504305), (51, 385645), (65, 302583), (85, 231387), (195, 100861), (221, 88995), (255, 77129), (289, 68055), (349, 56355), (663, 29665), (867, 22685), (1047, 18785), (1105, 17799), (1445, 13611), (1745, 11271), (3315, 5933), (3757, 5235), (4335, 4537)]