19991864

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8647}}^1$

素因数の和:8687

約数の個数: 24

約数和(自身を含む): 39824040

約数和(自身を除く): 19832176

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8647, 17294, 34588, 69176, 146999, 293998, 587996, 1175992, 2498983, 4997966, 9995932, 19991864]

約数ペア:

[(1, 19991864), (2, 9995932), (4, 4997966), (8, 2498983), (17, 1175992), (34, 587996), (68, 293998), (136, 146999), (289, 69176), (578, 34588), (1156, 17294), (2312, 8647)]