27780172

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1543}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 55682816

約数和(自身を除く): 27902644

約数列:

[1, 2, 4, 7, 14, 28, 643, 1286, 1543, 2572, 3086, 4501, 6172, 9002, 10801, 18004, 21602, 43204, 992149, 1984298, 3968596, 6945043, 13890086, 27780172]

約数ペア:

[(1, 27780172), (2, 13890086), (4, 6945043), (7, 3968596), (14, 1984298), (28, 992149), (643, 43204), (1286, 21602), (1543, 18004), (2572, 10801), (3086, 9002), (4501, 6172)]