215873164

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{319339}}^1$

素因数の和:319369

約数の個数: 18

約数和(自身を含む): 409074540

約数和(自身を除く): 193201376

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 319339, 638678, 1277356, 4151407, 8302814, 16605628, 53968291, 107936582, 215873164]

約数ペア:

[(1, 215873164), (2, 107936582), (4, 53968291), (13, 16605628), (26, 8302814), (52, 4151407), (169, 1277356), (338, 638678), (676, 319339)]