21255370557

素因数分解:

$3^1\times {\mathrm{1061}}^1\times {\mathrm{2141}}^1\times {\mathrm{3119}}^1$

素因数の和:6324

約数の個数: 16

約数和(自身を含む): 28389553920

約数和(自身を除く): 7134183363

約数列:

[1, 3, 1061, 2141, 3119, 3183, 6423, 9357, 2271601, 3309259, 6677779, 6814803, 9927777, 20033337, 7085123519, 21255370557]

約数ペア:

[(1, 21255370557), (3, 7085123519), (1061, 20033337), (2141, 9927777), (3119, 6814803), (3183, 6677779), (6423, 3309259), (9357, 2271601)]