20814937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 26449920

約数和(自身を除く): 5634983

約数列:

[1, 11, 13, 19, 47, 143, 163, 209, 247, 517, 611, 893, 1793, 2119, 2717, 3097, 6721, 7661, 9823, 11609, 23309, 34067, 40261, 84271, 99593, 127699, 145559, 442871, 1095523, 1601149, 1892267, 20814937]

約数ペア:

[(1, 20814937), (11, 1892267), (13, 1601149), (19, 1095523), (47, 442871), (143, 145559), (163, 127699), (209, 99593), (247, 84271), (517, 40261), (611, 34067), (893, 23309), (1793, 11609), (2119, 9823), (2717, 7661), (3097, 6721)]