261313486

素因数分解:

$2^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{38327}}^1$

素因数の和:38823

約数の個数: 16

約数和(自身を含む): 448897536

約数和(自身を除く): 187584050

約数列:

[1, 2, 7, 14, 487, 974, 3409, 6818, 38327, 76654, 268289, 536578, 18665249, 37330498, 130656743, 261313486]

約数ペア:

[(1, 261313486), (2, 130656743), (7, 37330498), (14, 18665249), (487, 536578), (974, 268289), (3409, 76654), (6818, 38327)]