21000228205

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{324403}}^1$

素因数の和:324537

約数の個数: 24

約数和(自身を含む): 27958434336

約数和(自身を除く): 6958206131

約数列:

[1, 5, 11, 55, 107, 121, 535, 605, 1177, 5885, 12947, 64735, 324403, 1622015, 3568433, 17842165, 34711121, 39252763, 173555605, 196263815, 381822331, 1909111655, 4200045641, 21000228205]

約数ペア:

[(1, 21000228205), (5, 4200045641), (11, 1909111655), (55, 381822331), (107, 196263815), (121, 173555605), (535, 39252763), (605, 34711121), (1177, 17842165), (5885, 3568433), (12947, 1622015), (64735, 324403)]