21342955

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1154

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 5095445

約数列:

[1, 5, 59, 71, 295, 355, 1019, 4189, 5095, 20945, 60121, 72349, 300605, 361745, 4268591, 21342955]

約数ペア:

[(1, 21342955), (5, 4268591), (59, 361745), (71, 300605), (295, 72349), (355, 60121), (1019, 20945), (4189, 5095)]