21883888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105211}}^1$

素因数の和:105232

約数の個数: 20

約数和(自身を含む): 45662008

約数和(自身を除く): 23778120

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105211, 210422, 420844, 841688, 1367743, 1683376, 2735486, 5470972, 10941944, 21883888]

約数ペア:

[(1, 21883888), (2, 10941944), (4, 5470972), (8, 2735486), (13, 1683376), (16, 1367743), (26, 841688), (52, 420844), (104, 210422), (208, 105211)]