21049929

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1174

約数の個数: 32

約数和(自身を含む): 33744000

約数和(自身を除く): 12694071

約数列:

[1, 3, 9, 19, 27, 37, 57, 111, 171, 333, 513, 703, 999, 1109, 2109, 3327, 6327, 9981, 18981, 21071, 29943, 41033, 63213, 123099, 189639, 369297, 568917, 779627, 1107891, 2338881, 7016643, 21049929]

約数ペア:

[(1, 21049929), (3, 7016643), (9, 2338881), (19, 1107891), (27, 779627), (37, 568917), (57, 369297), (111, 189639), (171, 123099), (333, 63213), (513, 41033), (703, 29943), (999, 21071), (1109, 18981), (2109, 9981), (3327, 6327)]