491657187

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1377191}}^1$

素因数の和:1377218

約数の個数: 16

約数和(自身を含む): 793262592

約数和(自身を除く): 301605405

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 1377191, 4131573, 9640337, 23412247, 28921011, 70236741, 163885729, 491657187]

約数ペア:

[(1, 491657187), (3, 163885729), (7, 70236741), (17, 28921011), (21, 23412247), (51, 9640337), (119, 4131573), (357, 1377191)]