21001014004

素因数分解:

$2^2\times {\mathrm{131}}^2\times {\mathrm{197}}^1\times {\mathrm{1553}}^1$

素因数の和:2016

約数の個数: 36

約数和(自身を含む): 37246424292

約数和(自身を除く): 16245410288

約数列:

[1, 2, 4, 131, 197, 262, 394, 524, 788, 1553, 3106, 6212, 17161, 25807, 34322, 51614, 68644, 103228, 203443, 305941, 406886, 611882, 813772, 1223764, 3380717, 6761434, 13522868, 26651033, 40078271, 53302066, 80156542, 106604132, 160313084, 5250253501, 10500507002, 21001014004]

約数ペア:

[(1, 21001014004), (2, 10500507002), (4, 5250253501), (131, 160313084), (197, 106604132), (262, 80156542), (394, 53302066), (524, 40078271), (788, 26651033), (1553, 13522868), (3106, 6761434), (6212, 3380717), (17161, 1223764), (25807, 813772), (34322, 611882), (51614, 406886), (68644, 305941), (103228, 203443)]