28214739

素因数分解:

$3^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:624

約数の個数: 36

約数和(自身を含む): 47856744

約数和(自身を除く): 19642005

約数列:

[1, 3, 7, 9, 21, 49, 63, 137, 147, 411, 441, 467, 959, 1233, 1401, 2877, 3269, 4203, 6713, 8631, 9807, 20139, 22883, 29421, 60417, 63979, 68649, 191937, 205947, 447853, 575811, 1343559, 3134971, 4030677, 9404913, 28214739]

約数ペア:

[(1, 28214739), (3, 9404913), (7, 4030677), (9, 3134971), (21, 1343559), (49, 575811), (63, 447853), (137, 205947), (147, 191937), (411, 68649), (441, 63979), (467, 60417), (959, 29421), (1233, 22883), (1401, 20139), (2877, 9807), (3269, 8631), (4203, 6713)]