15681369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 23442912

約数和(自身を除く): 7761543

約数列:

[1, 3, 11, 33, 43, 129, 257, 473, 771, 1419, 1849, 2827, 5547, 8481, 11051, 20339, 33153, 61017, 121561, 364683, 475193, 1425579, 5227123, 15681369]

約数ペア:

[(1, 15681369), (3, 5227123), (11, 1425579), (33, 475193), (43, 364683), (129, 121561), (257, 61017), (473, 33153), (771, 20339), (1419, 11051), (1849, 8481), (2827, 5547)]