28388591

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1699}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 37209600

約数和(自身を除く): 8821009

約数列:

[1, 7, 11, 31, 49, 77, 217, 341, 539, 1519, 1699, 2387, 11893, 16709, 18689, 52669, 83251, 130823, 368683, 579359, 915761, 2580781, 4055513, 28388591]

約数ペア:

[(1, 28388591), (7, 4055513), (11, 2580781), (31, 915761), (49, 579359), (77, 368683), (217, 130823), (341, 83251), (539, 52669), (1519, 18689), (1699, 16709), (2387, 11893)]