187777221

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1\times {\mathrm{3089}}^1$

素因数の和:3996

約数の個数: 16

約数和(自身を含む): 261636480

約数和(自身を除く): 73859259

約数列:

[1, 3, 23, 69, 881, 2643, 3089, 9267, 20263, 60789, 71047, 213141, 2721409, 8164227, 62592407, 187777221]

約数ペア:

[(1, 187777221), (3, 62592407), (23, 8164227), (69, 2721409), (881, 213141), (2643, 71047), (3089, 60789), (9267, 20263)]