12725991

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{8269}}^1$

素因数の和:8300

約数の個数: 20

約数和(自身を含む): 20013400

約数和(自身を除く): 7287409

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 8269, 24807, 74421, 157111, 223263, 471333, 669789, 1413999, 4241997, 12725991]

約数ペア:

[(1, 12725991), (3, 4241997), (9, 1413999), (19, 669789), (27, 471333), (57, 223263), (81, 157111), (171, 74421), (513, 24807), (1539, 8269)]