19972467

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:900

約数の個数: 32

約数和(自身を含む): 31959360

約数和(自身を除く): 11986893

約数列:

[1, 3, 9, 17, 27, 51, 53, 153, 159, 459, 477, 821, 901, 1431, 2463, 2703, 7389, 8109, 13957, 22167, 24327, 41871, 43513, 125613, 130539, 376839, 391617, 739721, 1174851, 2219163, 6657489, 19972467]

約数ペア:

[(1, 19972467), (3, 6657489), (9, 2219163), (17, 1174851), (27, 739721), (51, 391617), (53, 376839), (153, 130539), (159, 125613), (459, 43513), (477, 41871), (821, 24327), (901, 22167), (1431, 13957), (2463, 8109), (2703, 7389)]