20173153

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2879}}^1$

素因数の和:2917

約数の個数: 24

約数和(自身を含む): 27578880

約数和(自身を除く): 7405727

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2879, 7007, 20153, 31669, 37427, 141071, 221683, 261989, 411697, 1551781, 1833923, 2881879, 20173153]

約数ペア:

[(1, 20173153), (7, 2881879), (11, 1833923), (13, 1551781), (49, 411697), (77, 261989), (91, 221683), (143, 141071), (539, 37427), (637, 31669), (1001, 20153), (2879, 7007)]