27878929

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 32130000

約数和(自身を除く): 4251071

約数列:

[1, 13, 17, 101, 221, 1249, 1313, 1717, 16237, 21233, 22321, 126149, 276029, 1639937, 2144533, 27878929]

約数ペア:

[(1, 27878929), (13, 2144533), (17, 1639937), (101, 276029), (221, 126149), (1249, 22321), (1313, 21233), (1717, 16237)]