20191668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{887}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 54104064

約数和(自身を除く): 33912396

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 271, 542, 813, 887, 1084, 1626, 1774, 1897, 2661, 3252, 3548, 3794, 5322, 5691, 6209, 7588, 10644, 11382, 12418, 18627, 22764, 24836, 37254, 74508, 240377, 480754, 721131, 961508, 1442262, 1682639, 2884524, 3365278, 5047917, 6730556, 10095834, 20191668]

約数ペア:

[(1, 20191668), (2, 10095834), (3, 6730556), (4, 5047917), (6, 3365278), (7, 2884524), (12, 1682639), (14, 1442262), (21, 961508), (28, 721131), (42, 480754), (84, 240377), (271, 74508), (542, 37254), (813, 24836), (887, 22764), (1084, 18627), (1626, 12418), (1774, 11382), (1897, 10644), (2661, 7588), (3252, 6209), (3548, 5691), (3794, 5322)]