18954019

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 3606749

約数列:

[1, 7, 47, 53, 329, 371, 1087, 2491, 7609, 17437, 51089, 57611, 357623, 403277, 2707717, 18954019]

約数ペア:

[(1, 18954019), (7, 2707717), (47, 403277), (53, 357623), (329, 57611), (371, 51089), (1087, 17437), (2491, 7609)]