21206916

素因数分解:

$2^2\times 3^2\times {\mathrm{97}}^1\times {\mathrm{6073}}^1$

素因数の和:6180

約数の個数: 36

約数和(自身を含む): 54167932

約数和(自身を除く): 32961016

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 97, 194, 291, 388, 582, 873, 1164, 1746, 3492, 6073, 12146, 18219, 24292, 36438, 54657, 72876, 109314, 218628, 589081, 1178162, 1767243, 2356324, 3534486, 5301729, 7068972, 10603458, 21206916]

約数ペア:

[(1, 21206916), (2, 10603458), (3, 7068972), (4, 5301729), (6, 3534486), (9, 2356324), (12, 1767243), (18, 1178162), (36, 589081), (97, 218628), (194, 109314), (291, 72876), (388, 54657), (582, 36438), (873, 24292), (1164, 18219), (1746, 12146), (3492, 6073)]