18523841

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 23654400

約数和(自身を除く): 5130559

約数列:

[1, 7, 19, 41, 43, 79, 133, 287, 301, 553, 779, 817, 1501, 1763, 3239, 3397, 5453, 5719, 10507, 12341, 22673, 23779, 33497, 61541, 64543, 139277, 234479, 430787, 451801, 974939, 2646263, 18523841]

約数ペア:

[(1, 18523841), (7, 2646263), (19, 974939), (41, 451801), (43, 430787), (79, 234479), (133, 139277), (287, 64543), (301, 61541), (553, 33497), (779, 23779), (817, 22673), (1501, 12341), (1763, 10507), (3239, 5719), (3397, 5453)]