19966221

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4919}}^1$

素因数の和:4977

約数の個数: 24

約数和(自身を含む): 32235840

約数和(自身を除く): 12269619

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 4919, 14757, 44271, 54109, 162327, 201679, 486981, 605037, 1815111, 2218469, 6655407, 19966221]

約数ペア:

[(1, 19966221), (3, 6655407), (9, 2218469), (11, 1815111), (33, 605037), (41, 486981), (99, 201679), (123, 162327), (369, 54109), (451, 44271), (1353, 14757), (4059, 4919)]