212118676

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{688697}}^1$

素因数の和:688719

約数の個数: 24

約数和(自身を含む): 462805056

約数和(自身を除く): 250686380

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 688697, 1377394, 2754788, 4820879, 7575667, 9641758, 15151334, 19283516, 30302668, 53029669, 106059338, 212118676]

約数ペア:

[(1, 212118676), (2, 106059338), (4, 53029669), (7, 30302668), (11, 19283516), (14, 15151334), (22, 9641758), (28, 7575667), (44, 4820879), (77, 2754788), (154, 1377394), (308, 688697)]