639609838

素因数分解:

$2^1\times 7^2\times {\mathrm{1117}}^1\times {\mathrm{5843}}^1$

素因数の和:6976

約数の個数: 24

約数和(自身を含む): 1117244232

約数和(自身を除く): 477634394

約数列:

[1, 2, 7, 14, 49, 98, 1117, 2234, 5843, 7819, 11686, 15638, 40901, 54733, 81802, 109466, 286307, 572614, 6526631, 13053262, 45686417, 91372834, 319804919, 639609838]

約数ペア:

[(1, 639609838), (2, 319804919), (7, 91372834), (14, 45686417), (49, 13053262), (98, 6526631), (1117, 572614), (2234, 286307), (5843, 109466), (7819, 81802), (11686, 54733), (15638, 40901)]