19948269

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4057}}^1$

素因数の和:4220

約数の個数: 16

約数和(自身を含む): 29217600

約数和(自身を除く): 9269331

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4057, 4917, 12171, 44627, 133881, 604493, 1813479, 6649423, 19948269]

約数ペア:

[(1, 19948269), (3, 6649423), (11, 1813479), (33, 604493), (149, 133881), (447, 44627), (1639, 12171), (4057, 4917)]