21691131

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{93901}}^1$

素因数の和:93922

約数の個数: 16

約数和(自身を含む): 36058368

約数和(自身を除く): 14367237

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 93901, 281703, 657307, 1032911, 1971921, 3098733, 7230377, 21691131]

約数ペア:

[(1, 21691131), (3, 7230377), (7, 3098733), (11, 1971921), (21, 1032911), (33, 657307), (77, 281703), (231, 93901)]