19487858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17431}}^1$

素因数の和:17489

約数の個数: 16

約数和(自身を含む): 32214336

約数和(自身を除く): 12726478

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17431, 34862, 226603, 453206, 749533, 1499066, 9743929, 19487858]

約数ペア:

[(1, 19487858), (2, 9743929), (13, 1499066), (26, 749533), (43, 453206), (86, 226603), (559, 34862), (1118, 17431)]