639759426

素因数分解:

$2^1\times 3^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1\times {\mathrm{1663}}^1$

素因数の和:2426

約数の個数: 32

約数和(自身を含む): 1295443968

約数和(自身を除く): 655684542

約数列:

[1, 2, 3, 6, 97, 194, 291, 582, 661, 1322, 1663, 1983, 3326, 3966, 4989, 9978, 64117, 128234, 161311, 192351, 322622, 384702, 483933, 967866, 1099243, 2198486, 3297729, 6595458, 106626571, 213253142, 319879713, 639759426]

約数ペア:

[(1, 639759426), (2, 319879713), (3, 213253142), (6, 106626571), (97, 6595458), (194, 3297729), (291, 2198486), (582, 1099243), (661, 967866), (1322, 483933), (1663, 384702), (1983, 322622), (3326, 192351), (3966, 161311), (4989, 128234), (9978, 64117)]