21382712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205603}}^1$

素因数の和:205622

約数の個数: 16

約数和(自身を含む): 43176840

約数和(自身を除く): 21794128

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205603, 411206, 822412, 1644824, 2672839, 5345678, 10691356, 21382712]

約数ペア:

[(1, 21382712), (2, 10691356), (4, 5345678), (8, 2672839), (13, 1644824), (26, 822412), (52, 411206), (104, 205603)]