21000756036

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1258133}}^1$

素因数の和:1258260

約数の個数: 48

約数和(自身を含む): 53264361024

約数和(自身を除く): 32263604988

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 107, 156, 214, 321, 428, 642, 1284, 1391, 2782, 4173, 5564, 8346, 16692, 1258133, 2516266, 3774399, 5032532, 7548798, 15097596, 16355729, 32711458, 49067187, 65422916, 98134374, 134620231, 196268748, 269240462, 403860693, 538480924, 807721386, 1615442772, 1750063003, 3500126006, 5250189009, 7000252012, 10500378018, 21000756036]

約数ペア:

[(1, 21000756036), (2, 10500378018), (3, 7000252012), (4, 5250189009), (6, 3500126006), (12, 1750063003), (13, 1615442772), (26, 807721386), (39, 538480924), (52, 403860693), (78, 269240462), (107, 196268748), (156, 134620231), (214, 98134374), (321, 65422916), (428, 49067187), (642, 32711458), (1284, 16355729), (1391, 15097596), (2782, 7548798), (4173, 5032532), (5564, 3774399), (8346, 2516266), (16692, 1258133)]