20531888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98711}}^1$

素因数の和:98732

約数の個数: 20

約数和(自身を含む): 42841008

約数和(自身を除く): 22309120

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98711, 197422, 394844, 789688, 1283243, 1579376, 2566486, 5132972, 10265944, 20531888]

約数ペア:

[(1, 20531888), (2, 10265944), (4, 5132972), (8, 2566486), (13, 1579376), (16, 1283243), (26, 789688), (52, 394844), (104, 197422), (208, 98711)]