639694054

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{458891}}^1$

素因数の和:458951

約数の個数: 16

約数和(自身を含む): 1040767056

約数和(自身を除く): 401073002

約数列:

[1, 2, 17, 34, 41, 82, 697, 1394, 458891, 917782, 7801147, 15602294, 18814531, 37629062, 319847027, 639694054]

約数ペア:

[(1, 639694054), (2, 319847027), (17, 37629062), (34, 18814531), (41, 15602294), (82, 7801147), (697, 917782), (1394, 458891)]