2178204561

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{6205711}}^1$

素因数の和:6205733

約数の個数: 16

約数和(自身を含む): 3475198720

約数和(自身を除く): 1296994159

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 6205711, 18617133, 55851399, 80674243, 167554197, 242022729, 726068187, 2178204561]

約数ペア:

[(1, 2178204561), (3, 726068187), (9, 242022729), (13, 167554197), (27, 80674243), (39, 55851399), (117, 18617133), (351, 6205711)]