247934128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1191991}}^1$

素因数の和:1192012

約数の個数: 20

約数和(自身を含む): 517324528

約数和(自身を除く): 269390400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1191991, 2383982, 4767964, 9535928, 15495883, 19071856, 30991766, 61983532, 123967064, 247934128]

約数ペア:

[(1, 247934128), (2, 123967064), (4, 61983532), (8, 30991766), (13, 19071856), (16, 15495883), (26, 9535928), (52, 4767964), (104, 2383982), (208, 1191991)]