639139754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{83243}}^1$

素因数の和:83605

約数の個数: 16

約数和(自身を含む): 1048874400

約数和(自身を除く): 409734646

約数列:

[1, 2, 11, 22, 349, 698, 3839, 7678, 83243, 166486, 915673, 1831346, 29051807, 58103614, 319569877, 639139754]

約数ペア:

[(1, 639139754), (2, 319569877), (11, 58103614), (22, 29051807), (349, 1831346), (698, 915673), (3839, 166486), (7678, 83243)]