81427563

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{6367}}^1$

素因数の和:6416

約数の個数: 36

約数和(自身を含む): 141560640

約数和(自身を除く): 60133077

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 4263, 6367, 12789, 19101, 44569, 57303, 133707, 184643, 311983, 401121, 553929, 935949, 1292501, 1661787, 2807847, 3877503, 9047507, 11632509, 27142521, 81427563]

約数ペア:

[(1, 81427563), (3, 27142521), (7, 11632509), (9, 9047507), (21, 3877503), (29, 2807847), (49, 1661787), (63, 1292501), (87, 935949), (147, 553929), (203, 401121), (261, 311983), (441, 184643), (609, 133707), (1421, 57303), (1827, 44569), (4263, 19101), (6367, 12789)]