21255553

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{751}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 24256512

約数和(自身を除く): 3000959

約数列:

[1, 11, 31, 83, 341, 751, 913, 2573, 8261, 23281, 28303, 62333, 256091, 685663, 1932323, 21255553]

約数ペア:

[(1, 21255553), (11, 1932323), (31, 685663), (83, 256091), (341, 62333), (751, 28303), (913, 23281), (2573, 8261)]