20097900921

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{384509}}^1$

素因数の和:384669

約数の個数: 32

約数和(自身を含む): 32483404800

約数和(自身を除く): 12385503879

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 2489, 2751, 7467, 17423, 52269, 384509, 1153527, 2691563, 7305671, 8074689, 21917013, 50370679, 51139697, 151112037, 153419091, 352594753, 957042901, 1057784259, 2871128703, 6699300307, 20097900921]

約数ペア:

[(1, 20097900921), (3, 6699300307), (7, 2871128703), (19, 1057784259), (21, 957042901), (57, 352594753), (131, 153419091), (133, 151112037), (393, 51139697), (399, 50370679), (917, 21917013), (2489, 8074689), (2751, 7305671), (7467, 2691563), (17423, 1153527), (52269, 384509)]