11921949

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 20267520

約数和(自身を除く): 8345571

約数列:

[1, 3, 9, 13, 19, 31, 39, 57, 93, 117, 171, 173, 247, 279, 403, 519, 589, 741, 1209, 1557, 1767, 2223, 2249, 3287, 3627, 5301, 5363, 6747, 7657, 9861, 16089, 20241, 22971, 29583, 42731, 48267, 68913, 69719, 101897, 128193, 209157, 305691, 384579, 627471, 917073, 1324661, 3973983, 11921949]

約数ペア:

[(1, 11921949), (3, 3973983), (9, 1324661), (13, 917073), (19, 627471), (31, 384579), (39, 305691), (57, 209157), (93, 128193), (117, 101897), (171, 69719), (173, 68913), (247, 48267), (279, 42731), (403, 29583), (519, 22971), (589, 20241), (741, 16089), (1209, 9861), (1557, 7657), (1767, 6747), (2223, 5363), (2249, 5301), (3287, 3627)]