19877661

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 29754816

約数和(自身を除く): 9877155

約数列:

[1, 3, 9, 41, 103, 123, 309, 369, 523, 927, 1569, 4223, 4707, 12669, 21443, 38007, 53869, 64329, 161607, 192987, 484821, 2208629, 6625887, 19877661]

約数ペア:

[(1, 19877661), (3, 6625887), (9, 2208629), (41, 484821), (103, 192987), (123, 161607), (309, 64329), (369, 53869), (523, 38007), (927, 21443), (1569, 12669), (4223, 4707)]