19113555

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 31477248

約数和(自身を除く): 12363693

約数列:

[1, 3, 5, 15, 71, 131, 137, 213, 355, 393, 411, 655, 685, 1065, 1965, 2055, 9301, 9727, 17947, 27903, 29181, 46505, 48635, 53841, 89735, 139515, 145905, 269205, 1274237, 3822711, 6371185, 19113555]

約数ペア:

[(1, 19113555), (3, 6371185), (5, 3822711), (15, 1274237), (71, 269205), (131, 145905), (137, 139515), (213, 89735), (355, 53841), (393, 48635), (411, 46505), (655, 29181), (685, 27903), (1065, 17947), (1965, 9727), (2055, 9301)]