1821988071

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{77773}}^1$

素因数の和:77935

約数の個数: 24

約数和(自身を含む): 2790531120

約数和(自身を除く): 968543049

約数列:

[1, 3, 9, 19, 57, 137, 171, 411, 1233, 2603, 7809, 23427, 77773, 233319, 699957, 1477687, 4433061, 10654901, 13299183, 31964703, 95894109, 202443119, 607329357, 1821988071]

約数ペア:

[(1, 1821988071), (3, 607329357), (9, 202443119), (19, 95894109), (57, 31964703), (137, 13299183), (171, 10654901), (411, 4433061), (1233, 1477687), (2603, 699957), (7809, 233319), (23427, 77773)]