18947145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4877}}^1$

素因数の和:4929

約数の個数: 32

約数和(自身を含む): 35589888

約数和(自身を除く): 16642743

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 4877, 14631, 24385, 34139, 73155, 102417, 170695, 180449, 512085, 541347, 902245, 1263143, 2706735, 3789429, 6315715, 18947145]

約数ペア:

[(1, 18947145), (3, 6315715), (5, 3789429), (7, 2706735), (15, 1263143), (21, 902245), (35, 541347), (37, 512085), (105, 180449), (111, 170695), (185, 102417), (259, 73155), (555, 34139), (777, 24385), (1295, 14631), (3885, 4877)]