638803564

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{991931}}^1$

素因数の和:991965

約数の個数: 24

約数和(自身を含む): 1333156608

約数和(自身を除く): 694353044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 991931, 1983862, 3967724, 6943517, 13887034, 22814413, 27774068, 45628826, 91257652, 159700891, 319401782, 638803564]

約数ペア:

[(1, 638803564), (2, 319401782), (4, 159700891), (7, 91257652), (14, 45628826), (23, 27774068), (28, 22814413), (46, 13887034), (92, 6943517), (161, 3967724), (322, 1983862), (644, 991931)]