638400554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{853}}^1\times {\mathrm{34019}}^1$

素因数の和:34885

約数の個数: 16

約数和(自身を含む): 1045910880

約数和(自身を除く): 407510326

約数列:

[1, 2, 11, 22, 853, 1706, 9383, 18766, 34019, 68038, 374209, 748418, 29018207, 58036414, 319200277, 638400554]

約数ペア:

[(1, 638400554), (2, 319200277), (11, 58036414), (22, 29018207), (853, 748418), (1706, 374209), (9383, 68038), (18766, 34019)]