278319807

素因数分解:

$3^7\times {\mathrm{127261}}^1$

素因数の和:127282

約数の個数: 16

約数和(自身を含む): 417419360

約数和(自身を除く): 139099553

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 127261, 381783, 1145349, 3436047, 10308141, 30924423, 92773269, 278319807]

約数ペア:

[(1, 278319807), (3, 92773269), (9, 30924423), (27, 10308141), (81, 3436047), (243, 1145349), (729, 381783), (2187, 127261)]