20952915

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 36261120

約数和(自身を除く): 15308205

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 185, 285, 555, 703, 1987, 2109, 3515, 5961, 9935, 10545, 29805, 37753, 73519, 113259, 188765, 220557, 367595, 566295, 1102785, 1396861, 4190583, 6984305, 20952915]

約数ペア:

[(1, 20952915), (3, 6984305), (5, 4190583), (15, 1396861), (19, 1102785), (37, 566295), (57, 367595), (95, 220557), (111, 188765), (185, 113259), (285, 73519), (555, 37753), (703, 29805), (1987, 10545), (2109, 9935), (3515, 5961)]