21449584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103123}}^1$

素因数の和:103144

約数の個数: 20

約数和(自身を含む): 44755816

約数和(自身を除く): 23306232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103123, 206246, 412492, 824984, 1340599, 1649968, 2681198, 5362396, 10724792, 21449584]

約数ペア:

[(1, 21449584), (2, 10724792), (4, 5362396), (8, 2681198), (13, 1649968), (16, 1340599), (26, 824984), (52, 412492), (104, 206246), (208, 103123)]