28153671

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 46491648

約数和(自身を除く): 18337977

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 281, 367, 843, 1101, 1967, 2569, 3653, 4771, 5901, 7707, 10959, 14313, 25571, 33397, 76713, 100191, 103127, 309381, 721889, 1340651, 2165667, 4021953, 9384557, 28153671]

約数ペア:

[(1, 28153671), (3, 9384557), (7, 4021953), (13, 2165667), (21, 1340651), (39, 721889), (91, 309381), (273, 103127), (281, 100191), (367, 76713), (843, 33397), (1101, 25571), (1967, 14313), (2569, 10959), (3653, 7707), (4771, 5901)]