18729468

素因数分解:

$2^2\times 3^7\times {\mathrm{2141}}^1$

素因数の和:2166

約数の個数: 48

約数和(自身を含む): 49180320

約数和(自身を除く): 30450852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2141, 2187, 2916, 4282, 4374, 6423, 8564, 8748, 12846, 19269, 25692, 38538, 57807, 77076, 115614, 173421, 231228, 346842, 520263, 693684, 1040526, 1560789, 2081052, 3121578, 4682367, 6243156, 9364734, 18729468]

約数ペア:

[(1, 18729468), (2, 9364734), (3, 6243156), (4, 4682367), (6, 3121578), (9, 2081052), (12, 1560789), (18, 1040526), (27, 693684), (36, 520263), (54, 346842), (81, 231228), (108, 173421), (162, 115614), (243, 77076), (324, 57807), (486, 38538), (729, 25692), (972, 19269), (1458, 12846), (2141, 8748), (2187, 8564), (2916, 6423), (4282, 4374)]