2643812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 4989600

約数和(自身を除く): 2345788

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 809, 817, 1618, 1634, 3236, 3268, 15371, 30742, 34787, 61484, 69574, 139148, 660953, 1321906, 2643812]

約数ペア:

[(1, 2643812), (2, 1321906), (4, 660953), (19, 139148), (38, 69574), (43, 61484), (76, 34787), (86, 30742), (172, 15371), (809, 3268), (817, 3236), (1618, 1634)]