21523736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4813}}^1$

素因数の和:4875

約数の個数: 32

約数和(自身を含む): 44481360

約数和(自身を除く): 22957624

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4813, 9626, 19252, 38504, 62569, 125138, 206959, 250276, 413918, 500552, 827836, 1655672, 2690467, 5380934, 10761868, 21523736]

約数ペア:

[(1, 21523736), (2, 10761868), (4, 5380934), (8, 2690467), (13, 1655672), (26, 827836), (43, 500552), (52, 413918), (86, 250276), (104, 206959), (172, 125138), (344, 62569), (559, 38504), (1118, 19252), (2236, 9626), (4472, 4813)]