21919535

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{1129}}^1$

素因数の和:1498

約数の個数: 16

約数和(自身を含む): 28801440

約数和(自身を除く): 6881905

約数列:

[1, 5, 11, 55, 353, 1129, 1765, 3883, 5645, 12419, 19415, 62095, 398537, 1992685, 4383907, 21919535]

約数ペア:

[(1, 21919535), (5, 4383907), (11, 1992685), (55, 398537), (353, 62095), (1129, 19415), (1765, 12419), (3883, 5645)]