13990823

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 18000144

約数和(自身を除く): 4009321

約数列:

[1, 7, 11, 49, 77, 101, 257, 539, 707, 1111, 1799, 2827, 4949, 7777, 12593, 19789, 25957, 54439, 138523, 181699, 285527, 1271893, 1998689, 13990823]

約数ペア:

[(1, 13990823), (7, 1998689), (11, 1271893), (49, 285527), (77, 181699), (101, 138523), (257, 54439), (539, 25957), (707, 19789), (1111, 12593), (1799, 7777), (2827, 4949)]