20211925

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:333

約数の個数: 24

約数和(自身を含む): 25980480

約数和(自身を除く): 5768555

約数列:

[1, 5, 25, 59, 71, 193, 295, 355, 965, 1475, 1775, 4189, 4825, 11387, 13703, 20945, 56935, 68515, 104725, 284675, 342575, 808477, 4042385, 20211925]

約数ペア:

[(1, 20211925), (5, 4042385), (25, 808477), (59, 342575), (71, 284675), (193, 104725), (295, 68515), (355, 56935), (965, 20945), (1475, 13703), (1775, 11387), (4189, 4825)]