18690896

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3881}}^1$

素因数の和:3939

約数の個数: 40

約数和(自身を含む): 42360384

約数和(自身を除く): 23669488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 3881, 4816, 7762, 15524, 27167, 31048, 54334, 62096, 108668, 166883, 217336, 333766, 434672, 667532, 1168181, 1335064, 2336362, 2670128, 4672724, 9345448, 18690896]

約数ペア:

[(1, 18690896), (2, 9345448), (4, 4672724), (7, 2670128), (8, 2336362), (14, 1335064), (16, 1168181), (28, 667532), (43, 434672), (56, 333766), (86, 217336), (112, 166883), (172, 108668), (301, 62096), (344, 54334), (602, 31048), (688, 27167), (1204, 15524), (2408, 7762), (3881, 4816)]