641447807

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{3037}}^1$

素因数の和:3279

約数の個数: 32

約数和(自身を含む): 865611264

約数和(自身を除く): 224163457

約数列:

[1, 7, 11, 13, 77, 91, 143, 211, 1001, 1477, 2321, 2743, 3037, 16247, 19201, 21259, 30173, 33407, 39481, 211211, 233849, 276367, 434291, 640807, 3040037, 4485649, 7048877, 8330491, 49342139, 58313437, 91635401, 641447807]

約数ペア:

[(1, 641447807), (7, 91635401), (11, 58313437), (13, 49342139), (77, 8330491), (91, 7048877), (143, 4485649), (211, 3040037), (1001, 640807), (1477, 434291), (2321, 276367), (2743, 233849), (3037, 211211), (16247, 39481), (19201, 33407), (21259, 30173)]