81609969

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{6977}}^1$

素因数の和:7544

約数の個数: 16

約数和(自身を含む): 124599168

約数和(自身を除く): 42989199

約数列:

[1, 3, 7, 21, 557, 1671, 3899, 6977, 11697, 20931, 48839, 146517, 3886189, 11658567, 27203323, 81609969]

約数ペア:

[(1, 81609969), (3, 27203323), (7, 11658567), (21, 3886189), (557, 146517), (1671, 48839), (3899, 20931), (6977, 11697)]