261657243

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{2011}}^1$

素因数の和:2160

約数の個数: 32

約数和(自身を含む): 399180800

約数和(自身を除く): 137523557

約数列:

[1, 3, 9, 27, 61, 79, 183, 237, 549, 711, 1647, 2011, 2133, 4819, 6033, 14457, 18099, 43371, 54297, 122671, 130113, 158869, 368013, 476607, 1104039, 1429821, 3312117, 4289463, 9691009, 29073027, 87219081, 261657243]

約数ペア:

[(1, 261657243), (3, 87219081), (9, 29073027), (27, 9691009), (61, 4289463), (79, 3312117), (183, 1429821), (237, 1104039), (549, 476607), (711, 368013), (1647, 158869), (2011, 130113), (2133, 122671), (4819, 54297), (6033, 43371), (14457, 18099)]